Home / 69,177.65-103,531.92-42,540.38

Finding the Fourth Proportional to 69,177.65, 103,531.92 and 42,540.38

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Solution

The fourth proportional to 69,177.65, 103,531.92 and 42,540.38 is: 63,666.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,177.65 : 103,531.92 = 42,540.38 : x
  2. Step 2: Convert to fraction form
    69,177.65/103,531.92 = 42,540.38/x
  3. Step 3: Cross multiply
    69,177.65x = 103,531.92 × 42,540.38
  4. Step 4: Simplify right side
    69,177.65x = 4,404,286,701.27
  5. Step 5: Solve for x
    x = 4,404,286,701.27/69,177.65
  6. Step 6: Final answer
    x = 63,666.32

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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.