Home / 86,190.30-129,285.45-41,903.55

Finding the Fourth Proportional to 86,190.30, 129,285.45 and 41,903.55

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Solution

The fourth proportional to 86,190.30, 129,285.45 and 41,903.55 is: 62,855.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,190.30 : 129,285.45 = 41,903.55 : x
  2. Step 2: Convert to fraction form
    86,190.30/129,285.45 = 41,903.55/x
  3. Step 3: Cross multiply
    86,190.30x = 129,285.45 × 41,903.55
  4. Step 4: Simplify right side
    86,190.30x = 5,417,519,318.35
  5. Step 5: Solve for x
    x = 5,417,519,318.35/86,190.30
  6. Step 6: Final answer
    x = 62,855.33

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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.