Home / 69,499.11-103,354.58-67,284.78

Finding the Fourth Proportional to 69,499.11, 103,354.58 and 67,284.78

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Solution

The fourth proportional to 69,499.11, 103,354.58 and 67,284.78 is: 100,061.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,499.11 : 103,354.58 = 67,284.78 : x
  2. Step 2: Convert to fraction form
    69,499.11/103,354.58 = 67,284.78/x
  3. Step 3: Cross multiply
    69,499.11x = 103,354.58 × 67,284.78
  4. Step 4: Simplify right side
    69,499.11x = 6,954,189,957.92
  5. Step 5: Solve for x
    x = 6,954,189,957.92/69,499.11
  6. Step 6: Final answer
    x = 100,061.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.