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Finding the Fourth Proportional to 57,532.60, 79,419.56 and 38,680.66

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Solution

The fourth proportional to 57,532.60, 79,419.56 and 38,680.66 is: 53,395.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,532.60 : 79,419.56 = 38,680.66 : x
  2. Step 2: Convert to fraction form
    57,532.60/79,419.56 = 38,680.66/x
  3. Step 3: Cross multiply
    57,532.60x = 79,419.56 × 38,680.66
  4. Step 4: Simplify right side
    57,532.60x = 3,072,000,997.71
  5. Step 5: Solve for x
    x = 3,072,000,997.71/57,532.60
  6. Step 6: Final answer
    x = 53,395.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.