Home / 87,388.02-130,444.06-74,987.73

Finding the Fourth Proportional to 87,388.02, 130,444.06 and 74,987.73

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Solution

The fourth proportional to 87,388.02, 130,444.06 and 74,987.73 is: 111,934.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,388.02 : 130,444.06 = 74,987.73 : x
  2. Step 2: Convert to fraction form
    87,388.02/130,444.06 = 74,987.73/x
  3. Step 3: Cross multiply
    87,388.02x = 130,444.06 × 74,987.73
  4. Step 4: Simplify right side
    87,388.02x = 9,781,703,951.38
  5. Step 5: Solve for x
    x = 9,781,703,951.38/87,388.02
  6. Step 6: Final answer
    x = 111,934.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.