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Finding the Fourth Proportional to 87,007.70, 130,414.35 and 37,079.30

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Solution

The fourth proportional to 87,007.70, 130,414.35 and 37,079.30 is: 55,577.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,007.70 : 130,414.35 = 37,079.30 : x
  2. Step 2: Convert to fraction form
    87,007.70/130,414.35 = 37,079.30/x
  3. Step 3: Cross multiply
    87,007.70x = 130,414.35 × 37,079.30
  4. Step 4: Simplify right side
    87,007.70x = 4,835,672,807.96
  5. Step 5: Solve for x
    x = 4,835,672,807.96/87,007.70
  6. Step 6: Final answer
    x = 55,577.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.