Home / 83,721.93-115,535.79-45,481.15

Finding the Fourth Proportional to 83,721.93, 115,535.79 and 45,481.15

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Solution

The fourth proportional to 83,721.93, 115,535.79 and 45,481.15 is: 62,763.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,721.93 : 115,535.79 = 45,481.15 : x
  2. Step 2: Convert to fraction form
    83,721.93/115,535.79 = 45,481.15/x
  3. Step 3: Cross multiply
    83,721.93x = 115,535.79 × 45,481.15
  4. Step 4: Simplify right side
    83,721.93x = 5,254,700,217.81
  5. Step 5: Solve for x
    x = 5,254,700,217.81/83,721.93
  6. Step 6: Final answer
    x = 62,763.73

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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.