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Finding the Fourth Proportional to 71,382.88, 98,553.60 and 45,901.12

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Solution

The fourth proportional to 71,382.88, 98,553.60 and 45,901.12 is: 63,372.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,382.88 : 98,553.60 = 45,901.12 : x
  2. Step 2: Convert to fraction form
    71,382.88/98,553.60 = 45,901.12/x
  3. Step 3: Cross multiply
    71,382.88x = 98,553.60 × 45,901.12
  4. Step 4: Simplify right side
    71,382.88x = 4,523,720,620.03
  5. Step 5: Solve for x
    x = 4,523,720,620.03/71,382.88
  6. Step 6: Final answer
    x = 63,372.63

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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.