Home / 69,091.20-103,470.72-39,419.08

Finding the Fourth Proportional to 69,091.20, 103,470.72 and 39,419.08

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Solution

The fourth proportional to 69,091.20, 103,470.72 and 39,419.08 is: 59,033.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,091.20 : 103,470.72 = 39,419.08 : x
  2. Step 2: Convert to fraction form
    69,091.20/103,470.72 = 39,419.08/x
  3. Step 3: Cross multiply
    69,091.20x = 103,470.72 × 39,419.08
  4. Step 4: Simplify right side
    69,091.20x = 4,078,720,806.45
  5. Step 5: Solve for x
    x = 4,078,720,806.45/69,091.20
  6. Step 6: Final answer
    x = 59,033.87

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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.