Home / 87,169.55-130,721.12-37,272.74

Finding the Fourth Proportional to 87,169.55, 130,721.12 and 37,272.74

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Solution

The fourth proportional to 87,169.55, 130,721.12 and 37,272.74 is: 55,894.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,169.55 : 130,721.12 = 37,272.74 : x
  2. Step 2: Convert to fraction form
    87,169.55/130,721.12 = 37,272.74/x
  3. Step 3: Cross multiply
    87,169.55x = 130,721.12 × 37,272.74
  4. Step 4: Simplify right side
    87,169.55x = 4,872,334,131.91
  5. Step 5: Solve for x
    x = 4,872,334,131.91/87,169.55
  6. Step 6: Final answer
    x = 55,894.91

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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.