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Finding the Fourth Proportional to 62,319.20, 93,478.80 and 54,543.20

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Solution

The fourth proportional to 62,319.20, 93,478.80 and 54,543.20 is: 81,814.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,319.20 : 93,478.80 = 54,543.20 : x
  2. Step 2: Convert to fraction form
    62,319.20/93,478.80 = 54,543.20/x
  3. Step 3: Cross multiply
    62,319.20x = 93,478.80 × 54,543.20
  4. Step 4: Simplify right side
    62,319.20x = 5,098,632,884.16
  5. Step 5: Solve for x
    x = 5,098,632,884.16/62,319.20
  6. Step 6: Final answer
    x = 81,814.80

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