Home / 87,677.80-131,451.90-48,279.40

Finding the Fourth Proportional to 87,677.80, 131,451.90 and 48,279.40

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Solution

The fourth proportional to 87,677.80, 131,451.90 and 48,279.40 is: 72,383.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,677.80 : 131,451.90 = 48,279.40 : x
  2. Step 2: Convert to fraction form
    87,677.80/131,451.90 = 48,279.40/x
  3. Step 3: Cross multiply
    87,677.80x = 131,451.90 × 48,279.40
  4. Step 4: Simplify right side
    87,677.80x = 6,346,418,860.86
  5. Step 5: Solve for x
    x = 6,346,418,860.86/87,677.80
  6. Step 6: Final answer
    x = 72,383.42

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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.