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Finding the Fourth Proportional to 67,487.94, 93,121.20 and 38,800.89

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Solution

The fourth proportional to 67,487.94, 93,121.20 and 38,800.89 is: 53,538.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,487.94 : 93,121.20 = 38,800.89 : x
  2. Step 2: Convert to fraction form
    67,487.94/93,121.20 = 38,800.89/x
  3. Step 3: Cross multiply
    67,487.94x = 93,121.20 × 38,800.89
  4. Step 4: Simplify right side
    67,487.94x = 3,613,185,437.87
  5. Step 5: Solve for x
    x = 3,613,185,437.87/67,487.94
  6. Step 6: Final answer
    x = 53,538.24

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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.