Home / 69,129.56-95,408.08-38,920.88

Finding the Fourth Proportional to 69,129.56, 95,408.08 and 38,920.88

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Solution

The fourth proportional to 69,129.56, 95,408.08 and 38,920.88 is: 53,716.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,129.56 : 95,408.08 = 38,920.88 : x
  2. Step 2: Convert to fraction form
    69,129.56/95,408.08 = 38,920.88/x
  3. Step 3: Cross multiply
    69,129.56x = 95,408.08 × 38,920.88
  4. Step 4: Simplify right side
    69,129.56x = 3,713,366,432.71
  5. Step 5: Solve for x
    x = 3,713,366,432.71/69,129.56
  6. Step 6: Final answer
    x = 53,716.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.