Home / 87,148.68-130,670.36-39,108.52

Finding the Fourth Proportional to 87,148.68, 130,670.36 and 39,108.52

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Solution

The fourth proportional to 87,148.68, 130,670.36 and 39,108.52 is: 58,639.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,148.68 : 130,670.36 = 39,108.52 : x
  2. Step 2: Convert to fraction form
    87,148.68/130,670.36 = 39,108.52/x
  3. Step 3: Cross multiply
    87,148.68x = 130,670.36 × 39,108.52
  4. Step 4: Simplify right side
    87,148.68x = 5,110,324,387.47
  5. Step 5: Solve for x
    x = 5,110,324,387.47/87,148.68
  6. Step 6: Final answer
    x = 58,639.15

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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.