Home / 87,423.80-120,645.02-51,616.11

Finding the Fourth Proportional to 87,423.80, 120,645.02 and 51,616.11

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Solution

The fourth proportional to 87,423.80, 120,645.02 and 51,616.11 is: 71,230.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,423.80 : 120,645.02 = 51,616.11 : x
  2. Step 2: Convert to fraction form
    87,423.80/120,645.02 = 51,616.11/x
  3. Step 3: Cross multiply
    87,423.80x = 120,645.02 × 51,616.11
  4. Step 4: Simplify right side
    87,423.80x = 6,227,226,720.25
  5. Step 5: Solve for x
    x = 6,227,226,720.25/87,423.80
  6. Step 6: Final answer
    x = 71,230.34

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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.