Home / 86,160.28-129,240.46-27,000.58

Finding the Fourth Proportional to 86,160.28, 129,240.46 and 27,000.58

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Solution

The fourth proportional to 86,160.28, 129,240.46 and 27,000.58 is: 40,500.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,160.28 : 129,240.46 = 27,000.58 : x
  2. Step 2: Convert to fraction form
    86,160.28/129,240.46 = 27,000.58/x
  3. Step 3: Cross multiply
    86,160.28x = 129,240.46 × 27,000.58
  4. Step 4: Simplify right side
    86,160.28x = 3,489,567,379.47
  5. Step 5: Solve for x
    x = 3,489,567,379.47/86,160.28
  6. Step 6: Final answer
    x = 40,500.88

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.