Home / 87,514.80-131,272.20-72,934.80

Finding the Fourth Proportional to 87,514.80, 131,272.20 and 72,934.80

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Solution

The fourth proportional to 87,514.80, 131,272.20 and 72,934.80 is: 109,402.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,514.80 : 131,272.20 = 72,934.80 : x
  2. Step 2: Convert to fraction form
    87,514.80/131,272.20 = 72,934.80/x
  3. Step 3: Cross multiply
    87,514.80x = 131,272.20 × 72,934.80
  4. Step 4: Simplify right side
    87,514.80x = 9,574,311,652.56
  5. Step 5: Solve for x
    x = 9,574,311,652.56/87,514.80
  6. Step 6: Final answer
    x = 109,402.20

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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.