Home / 90,658.13-125,110.44-49,821.71

Finding the Fourth Proportional to 90,658.13, 125,110.44 and 49,821.71

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Solution

The fourth proportional to 90,658.13, 125,110.44 and 49,821.71 is: 68,755.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,658.13 : 125,110.44 = 49,821.71 : x
  2. Step 2: Convert to fraction form
    90,658.13/125,110.44 = 49,821.71/x
  3. Step 3: Cross multiply
    90,658.13x = 125,110.44 × 49,821.71
  4. Step 4: Simplify right side
    90,658.13x = 6,233,215,434.10
  5. Step 5: Solve for x
    x = 6,233,215,434.10/90,658.13
  6. Step 6: Final answer
    x = 68,755.18

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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.