Home / 87,061.20-120,101.76-56,832.54

Finding the Fourth Proportional to 87,061.20, 120,101.76 and 56,832.54

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Solution

The fourth proportional to 87,061.20, 120,101.76 and 56,832.54 is: 78,401.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,061.20 : 120,101.76 = 56,832.54 : x
  2. Step 2: Convert to fraction form
    87,061.20/120,101.76 = 56,832.54/x
  3. Step 3: Cross multiply
    87,061.20x = 120,101.76 × 56,832.54
  4. Step 4: Simplify right side
    87,061.20x = 6,825,688,079.27
  5. Step 5: Solve for x
    x = 6,825,688,079.27/87,061.20
  6. Step 6: Final answer
    x = 78,401.03

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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.