Home / 81,337.07-112,229.19-51,104.87

Finding the Fourth Proportional to 81,337.07, 112,229.19 and 51,104.87

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Solution

The fourth proportional to 81,337.07, 112,229.19 and 51,104.87 is: 70,514.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,337.07 : 112,229.19 = 51,104.87 : x
  2. Step 2: Convert to fraction form
    81,337.07/112,229.19 = 51,104.87/x
  3. Step 3: Cross multiply
    81,337.07x = 112,229.19 × 51,104.87
  4. Step 4: Simplify right side
    81,337.07x = 5,735,458,165.16
  5. Step 5: Solve for x
    x = 5,735,458,165.16/81,337.07
  6. Step 6: Final answer
    x = 70,514.69

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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.