Home / 86,174.10-129,261.15-27,009.72

Finding the Fourth Proportional to 86,174.10, 129,261.15 and 27,009.72

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Solution

The fourth proportional to 86,174.10, 129,261.15 and 27,009.72 is: 40,514.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,174.10 : 129,261.15 = 27,009.72 : x
  2. Step 2: Convert to fraction form
    86,174.10/129,261.15 = 27,009.72/x
  3. Step 3: Cross multiply
    86,174.10x = 129,261.15 × 27,009.72
  4. Step 4: Simplify right side
    86,174.10x = 3,491,307,468.38
  5. Step 5: Solve for x
    x = 3,491,307,468.38/86,174.10
  6. Step 6: Final answer
    x = 40,514.58

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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.