Home / 87,145.44-120,253.68-49,423.20

Finding the Fourth Proportional to 87,145.44, 120,253.68 and 49,423.20

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Solution

The fourth proportional to 87,145.44, 120,253.68 and 49,423.20 is: 68,200.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,145.44 : 120,253.68 = 49,423.20 : x
  2. Step 2: Convert to fraction form
    87,145.44/120,253.68 = 49,423.20/x
  3. Step 3: Cross multiply
    87,145.44x = 120,253.68 × 49,423.20
  4. Step 4: Simplify right side
    87,145.44x = 5,943,321,677.38
  5. Step 5: Solve for x
    x = 5,943,321,677.38/87,145.44
  6. Step 6: Final answer
    x = 68,200.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.