Home / 87,629.10-131,443.65-28,466.70

Finding the Fourth Proportional to 87,629.10, 131,443.65 and 28,466.70

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Solution

The fourth proportional to 87,629.10, 131,443.65 and 28,466.70 is: 42,700.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,629.10 : 131,443.65 = 28,466.70 : x
  2. Step 2: Convert to fraction form
    87,629.10/131,443.65 = 28,466.70/x
  3. Step 3: Cross multiply
    87,629.10x = 131,443.65 × 28,466.70
  4. Step 4: Simplify right side
    87,629.10x = 3,741,766,951.46
  5. Step 5: Solve for x
    x = 3,741,766,951.46/87,629.10
  6. Step 6: Final answer
    x = 42,700.05

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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.