Home / 82,414.40-123,589.46-28,368.86

Finding the Fourth Proportional to 82,414.40, 123,589.46 and 28,368.86

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Solution

The fourth proportional to 82,414.40, 123,589.46 and 28,368.86 is: 42,542.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,414.40 : 123,589.46 = 28,368.86 : x
  2. Step 2: Convert to fraction form
    82,414.40/123,589.46 = 28,368.86/x
  3. Step 3: Cross multiply
    82,414.40x = 123,589.46 × 28,368.86
  4. Step 4: Simplify right side
    82,414.40x = 3,506,092,088.22
  5. Step 5: Solve for x
    x = 3,506,092,088.22/82,414.40
  6. Step 6: Final answer
    x = 42,542.23

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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.