Home / 318,024.13-477,033.76-81,366.43

Finding the Fourth Proportional to 318,024.13, 477,033.76 and 81,366.43

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Solution

The fourth proportional to 318,024.13, 477,033.76 and 81,366.43 is: 122,049.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,024.13 : 477,033.76 = 81,366.43 : x
  2. Step 2: Convert to fraction form
    318,024.13/477,033.76 = 81,366.43/x
  3. Step 3: Cross multiply
    318,024.13x = 477,033.76 × 81,366.43
  4. Step 4: Simplify right side
    318,024.13x = 38,814,532,949.80
  5. Step 5: Solve for x
    x = 38,814,532,949.80/318,024.13
  6. Step 6: Final answer
    x = 122,049.02

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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.