Home / 87,673.68-120,960.06-49,921.20

Finding the Fourth Proportional to 87,673.68, 120,960.06 and 49,921.20

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Solution

The fourth proportional to 87,673.68, 120,960.06 and 49,921.20 is: 68,874.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,673.68 : 120,960.06 = 49,921.20 : x
  2. Step 2: Convert to fraction form
    87,673.68/120,960.06 = 49,921.20/x
  3. Step 3: Cross multiply
    87,673.68x = 120,960.06 × 49,921.20
  4. Step 4: Simplify right side
    87,673.68x = 6,038,471,347.27
  5. Step 5: Solve for x
    x = 6,038,471,347.27/87,673.68
  6. Step 6: Final answer
    x = 68,874.39

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Double scale
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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.