Home / 82,584.28-123,878.76-20,254.72

Finding the Fourth Proportional to 82,584.28, 123,878.76 and 20,254.72

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Solution

The fourth proportional to 82,584.28, 123,878.76 and 20,254.72 is: 30,382.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,584.28 : 123,878.76 = 20,254.72 : x
  2. Step 2: Convert to fraction form
    82,584.28/123,878.76 = 20,254.72/x
  3. Step 3: Cross multiply
    82,584.28x = 123,878.76 × 20,254.72
  4. Step 4: Simplify right side
    82,584.28x = 2,509,129,597.75
  5. Step 5: Solve for x
    x = 2,509,129,597.75/82,584.28
  6. Step 6: Final answer
    x = 30,382.65

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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.