Home / 87,649.76-131,391.42-28,444.03

Finding the Fourth Proportional to 87,649.76, 131,391.42 and 28,444.03

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Solution

The fourth proportional to 87,649.76, 131,391.42 and 28,444.03 is: 42,639.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,649.76 : 131,391.42 = 28,444.03 : x
  2. Step 2: Convert to fraction form
    87,649.76/131,391.42 = 28,444.03/x
  3. Step 3: Cross multiply
    87,649.76x = 131,391.42 × 28,444.03
  4. Step 4: Simplify right side
    87,649.76x = 3,737,301,057.08
  5. Step 5: Solve for x
    x = 3,737,301,057.08/87,649.76
  6. Step 6: Final answer
    x = 42,639.03

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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.