Home / 82,961.26-124,441.86-20,631.76

Finding the Fourth Proportional to 82,961.26, 124,441.86 and 20,631.76

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Solution

The fourth proportional to 82,961.26, 124,441.86 and 20,631.76 is: 30,947.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,961.26 : 124,441.86 = 20,631.76 : x
  2. Step 2: Convert to fraction form
    82,961.26/124,441.86 = 20,631.76/x
  3. Step 3: Cross multiply
    82,961.26x = 124,441.86 × 20,631.76
  4. Step 4: Simplify right side
    82,961.26x = 2,567,454,589.47
  5. Step 5: Solve for x
    x = 2,567,454,589.47/82,961.26
  6. Step 6: Final answer
    x = 30,947.63

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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.