Home / 87,563.20-131,344.80-52,542.40

Finding the Fourth Proportional to 87,563.20, 131,344.80 and 52,542.40

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Solution

The fourth proportional to 87,563.20, 131,344.80 and 52,542.40 is: 78,813.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,563.20 : 131,344.80 = 52,542.40 : x
  2. Step 2: Convert to fraction form
    87,563.20/131,344.80 = 52,542.40/x
  3. Step 3: Cross multiply
    87,563.20x = 131,344.80 × 52,542.40
  4. Step 4: Simplify right side
    87,563.20x = 6,901,171,019.52
  5. Step 5: Solve for x
    x = 6,901,171,019.52/87,563.20
  6. Step 6: Final answer
    x = 78,813.60

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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.