Home / 87,403.80-131,105.70-52,325.40

Finding the Fourth Proportional to 87,403.80, 131,105.70 and 52,325.40

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Solution

The fourth proportional to 87,403.80, 131,105.70 and 52,325.40 is: 78,488.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,403.80 : 131,105.70 = 52,325.40 : x
  2. Step 2: Convert to fraction form
    87,403.80/131,105.70 = 52,325.40/x
  3. Step 3: Cross multiply
    87,403.80x = 131,105.70 × 52,325.40
  4. Step 4: Simplify right side
    87,403.80x = 6,860,158,194.78
  5. Step 5: Solve for x
    x = 6,860,158,194.78/87,403.80
  6. Step 6: Final answer
    x = 78,488.10

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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.