Home / 87,117.50-120,244.02-51,294.44

Finding the Fourth Proportional to 87,117.50, 120,244.02 and 51,294.44

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Solution

The fourth proportional to 87,117.50, 120,244.02 and 51,294.44 is: 70,799.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,117.50 : 120,244.02 = 51,294.44 : x
  2. Step 2: Convert to fraction form
    87,117.50/120,244.02 = 51,294.44/x
  3. Step 3: Cross multiply
    87,117.50x = 120,244.02 × 51,294.44
  4. Step 4: Simplify right side
    87,117.50x = 6,167,849,669.25
  5. Step 5: Solve for x
    x = 6,167,849,669.25/87,117.50
  6. Step 6: Final answer
    x = 70,799.20

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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.