Home / 83,721.04-115,535.92-45,480.96

Finding the Fourth Proportional to 83,721.04, 115,535.92 and 45,480.96

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Solution

The fourth proportional to 83,721.04, 115,535.92 and 45,480.96 is: 62,764.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,721.04 : 115,535.92 = 45,480.96 : x
  2. Step 2: Convert to fraction form
    83,721.04/115,535.92 = 45,480.96/x
  3. Step 3: Cross multiply
    83,721.04x = 115,535.92 × 45,480.96
  4. Step 4: Simplify right side
    83,721.04x = 5,254,684,556.08
  5. Step 5: Solve for x
    x = 5,254,684,556.08/83,721.04
  6. Step 6: Final answer
    x = 62,764.21

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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.