Home / 87,008.40-130,512.60-76,294.80

Finding the Fourth Proportional to 87,008.40, 130,512.60 and 76,294.80

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Solution

The fourth proportional to 87,008.40, 130,512.60 and 76,294.80 is: 114,442.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,008.40 : 130,512.60 = 76,294.80 : x
  2. Step 2: Convert to fraction form
    87,008.40/130,512.60 = 76,294.80/x
  3. Step 3: Cross multiply
    87,008.40x = 130,512.60 × 76,294.80
  4. Step 4: Simplify right side
    87,008.40x = 9,957,432,714.48
  5. Step 5: Solve for x
    x = 9,957,432,714.48/87,008.40
  6. Step 6: Final answer
    x = 114,442.20

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1.5x scale

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.