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Finding the Fourth Proportional to 61,376.16, 84,754.48 and 38,755.20

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Solution

The fourth proportional to 61,376.16, 84,754.48 and 38,755.20 is: 53,517.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,376.16 : 84,754.48 = 38,755.20 : x
  2. Step 2: Convert to fraction form
    61,376.16/84,754.48 = 38,755.20/x
  3. Step 3: Cross multiply
    61,376.16x = 84,754.48 × 38,755.20
  4. Step 4: Simplify right side
    61,376.16x = 3,284,676,823.30
  5. Step 5: Solve for x
    x = 3,284,676,823.30/61,376.16
  6. Step 6: Final answer
    x = 53,517.14

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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.