Home / 87,512.40-131,117.40-40,669.20

Finding the Fourth Proportional to 87,512.40, 131,117.40 and 40,669.20

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Solution

The fourth proportional to 87,512.40, 131,117.40 and 40,669.20 is: 60,933.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,512.40 : 131,117.40 = 40,669.20 : x
  2. Step 2: Convert to fraction form
    87,512.40/131,117.40 = 40,669.20/x
  3. Step 3: Cross multiply
    87,512.40x = 131,117.40 × 40,669.20
  4. Step 4: Simplify right side
    87,512.40x = 5,332,439,764.08
  5. Step 5: Solve for x
    x = 5,332,439,764.08/87,512.40
  6. Step 6: Final answer
    x = 60,933.53

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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.