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Finding the Fourth Proportional to 55,134.32, 82,701.52 and 15,691.43

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Solution

The fourth proportional to 55,134.32, 82,701.52 and 15,691.43 is: 23,537.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,134.32 : 82,701.52 = 15,691.43 : x
  2. Step 2: Convert to fraction form
    55,134.32/82,701.52 = 15,691.43/x
  3. Step 3: Cross multiply
    55,134.32x = 82,701.52 × 15,691.43
  4. Step 4: Simplify right side
    55,134.32x = 1,297,705,279.50
  5. Step 5: Solve for x
    x = 1,297,705,279.50/55,134.32
  6. Step 6: Final answer
    x = 23,537.16

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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.