Home / 87,227.18-120,386.76-53,255.48

Finding the Fourth Proportional to 87,227.18, 120,386.76 and 53,255.48

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Solution

The fourth proportional to 87,227.18, 120,386.76 and 53,255.48 is: 73,500.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,227.18 : 120,386.76 = 53,255.48 : x
  2. Step 2: Convert to fraction form
    87,227.18/120,386.76 = 53,255.48/x
  3. Step 3: Cross multiply
    87,227.18x = 120,386.76 × 53,255.48
  4. Step 4: Simplify right side
    87,227.18x = 6,411,253,887.80
  5. Step 5: Solve for x
    x = 6,411,253,887.80/87,227.18
  6. Step 6: Final answer
    x = 73,500.64

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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.