Home / 87,417.19-120,635.54-49,176.76

Finding the Fourth Proportional to 87,417.19, 120,635.54 and 49,176.76

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Solution

The fourth proportional to 87,417.19, 120,635.54 and 49,176.76 is: 67,863.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,417.19 : 120,635.54 = 49,176.76 : x
  2. Step 2: Convert to fraction form
    87,417.19/120,635.54 = 49,176.76/x
  3. Step 3: Cross multiply
    87,417.19x = 120,635.54 × 49,176.76
  4. Step 4: Simplify right side
    87,417.19x = 5,932,465,142.39
  5. Step 5: Solve for x
    x = 5,932,465,142.39/87,417.19
  6. Step 6: Final answer
    x = 67,863.83

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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.