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Finding the Fourth Proportional to 87,149.31, 130,394.08 and 51,629.70

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Solution

The fourth proportional to 87,149.31, 130,394.08 and 51,629.70 is: 77,249.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,149.31 : 130,394.08 = 51,629.70 : x
  2. Step 2: Convert to fraction form
    87,149.31/130,394.08 = 51,629.70/x
  3. Step 3: Cross multiply
    87,149.31x = 130,394.08 × 51,629.70
  4. Step 4: Simplify right side
    87,149.31x = 6,732,207,232.18
  5. Step 5: Solve for x
    x = 6,732,207,232.18/87,149.31
  6. Step 6: Final answer
    x = 77,249.12

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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.