Home / 84,139.72-126,233.50-34,255.62

Finding the Fourth Proportional to 84,139.72, 126,233.50 and 34,255.62

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Solution

The fourth proportional to 84,139.72, 126,233.50 and 34,255.62 is: 51,393.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,139.72 : 126,233.50 = 34,255.62 : x
  2. Step 2: Convert to fraction form
    84,139.72/126,233.50 = 34,255.62/x
  3. Step 3: Cross multiply
    84,139.72x = 126,233.50 × 34,255.62
  4. Step 4: Simplify right side
    84,139.72x = 4,324,206,721.63
  5. Step 5: Solve for x
    x = 4,324,206,721.63/84,139.72
  6. Step 6: Final answer
    x = 51,393.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.