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Finding the Fourth Proportional to 87,321.61, 130,872.88 and 37,343.04

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Solution

The fourth proportional to 87,321.61, 130,872.88 and 37,343.04 is: 55,967.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,321.61 : 130,872.88 = 37,343.04 : x
  2. Step 2: Convert to fraction form
    87,321.61/130,872.88 = 37,343.04/x
  3. Step 3: Cross multiply
    87,321.61x = 130,872.88 × 37,343.04
  4. Step 4: Simplify right side
    87,321.61x = 4,887,191,192.76
  5. Step 5: Solve for x
    x = 4,887,191,192.76/87,321.61
  6. Step 6: Final answer
    x = 55,967.72

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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.