Home / 69,077.46-103,616.12-19,170.12

Finding the Fourth Proportional to 69,077.46, 103,616.12 and 19,170.12

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Solution

The fourth proportional to 69,077.46, 103,616.12 and 19,170.12 is: 28,755.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,077.46 : 103,616.12 = 19,170.12 : x
  2. Step 2: Convert to fraction form
    69,077.46/103,616.12 = 19,170.12/x
  3. Step 3: Cross multiply
    69,077.46x = 103,616.12 × 19,170.12
  4. Step 4: Simplify right side
    69,077.46x = 1,986,333,454.33
  5. Step 5: Solve for x
    x = 1,986,333,454.33/69,077.46
  6. Step 6: Final answer
    x = 28,755.16

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Similar ratio
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1.5x scale

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.