Home / 83,669.80-115,567.24-62,543.38

Finding the Fourth Proportional to 83,669.80, 115,567.24 and 62,543.38

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Solution

The fourth proportional to 83,669.80, 115,567.24 and 62,543.38 is: 86,386.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,669.80 : 115,567.24 = 62,543.38 : x
  2. Step 2: Convert to fraction form
    83,669.80/115,567.24 = 62,543.38/x
  3. Step 3: Cross multiply
    83,669.80x = 115,567.24 × 62,543.38
  4. Step 4: Simplify right side
    83,669.80x = 7,227,965,806.87
  5. Step 5: Solve for x
    x = 7,227,965,806.87/83,669.80
  6. Step 6: Final answer
    x = 86,386.79

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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.