Home / 83,747.80-115,581.95-47,949.31

Finding the Fourth Proportional to 83,747.80, 115,581.95 and 47,949.31

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Solution

The fourth proportional to 83,747.80, 115,581.95 and 47,949.31 is: 66,175.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,747.80 : 115,581.95 = 47,949.31 : x
  2. Step 2: Convert to fraction form
    83,747.80/115,581.95 = 47,949.31/x
  3. Step 3: Cross multiply
    83,747.80x = 115,581.95 × 47,949.31
  4. Step 4: Simplify right side
    83,747.80x = 5,542,074,750.95
  5. Step 5: Solve for x
    x = 5,542,074,750.95/83,747.80
  6. Step 6: Final answer
    x = 66,175.77

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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.