Home / 69,178.80-103,757.28-22,420.76

Finding the Fourth Proportional to 69,178.80, 103,757.28 and 22,420.76

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Solution

The fourth proportional to 69,178.80, 103,757.28 and 22,420.76 is: 33,627.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,178.80 : 103,757.28 = 22,420.76 : x
  2. Step 2: Convert to fraction form
    69,178.80/103,757.28 = 22,420.76/x
  3. Step 3: Cross multiply
    69,178.80x = 103,757.28 × 22,420.76
  4. Step 4: Simplify right side
    69,178.80x = 2,326,317,073.13
  5. Step 5: Solve for x
    x = 2,326,317,073.13/69,178.80
  6. Step 6: Final answer
    x = 33,627.60

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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.