Home / 84,366.20-126,695.10-45,000.20

Finding the Fourth Proportional to 84,366.20, 126,695.10 and 45,000.20

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Solution

The fourth proportional to 84,366.20, 126,695.10 and 45,000.20 is: 67,578.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,366.20 : 126,695.10 = 45,000.20 : x
  2. Step 2: Convert to fraction form
    84,366.20/126,695.10 = 45,000.20/x
  3. Step 3: Cross multiply
    84,366.20x = 126,695.10 × 45,000.20
  4. Step 4: Simplify right side
    84,366.20x = 5,701,304,839.02
  5. Step 5: Solve for x
    x = 5,701,304,839.02/84,366.20
  6. Step 6: Final answer
    x = 67,578.07

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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.