Home / 87,404.80-131,107.20-52,326.40

Finding the Fourth Proportional to 87,404.80, 131,107.20 and 52,326.40

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Solution

The fourth proportional to 87,404.80, 131,107.20 and 52,326.40 is: 78,489.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,404.80 : 131,107.20 = 52,326.40 : x
  2. Step 2: Convert to fraction form
    87,404.80/131,107.20 = 52,326.40/x
  3. Step 3: Cross multiply
    87,404.80x = 131,107.20 × 52,326.40
  4. Step 4: Simplify right side
    87,404.80x = 6,860,367,790.08
  5. Step 5: Solve for x
    x = 6,860,367,790.08/87,404.80
  6. Step 6: Final answer
    x = 78,489.60

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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.