Home / 89,406.32-123,380.22-49,119.20

Finding the Fourth Proportional to 89,406.32, 123,380.22 and 49,119.20

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Solution

The fourth proportional to 89,406.32, 123,380.22 and 49,119.20 is: 67,784.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,406.32 : 123,380.22 = 49,119.20 : x
  2. Step 2: Convert to fraction form
    89,406.32/123,380.22 = 49,119.20/x
  3. Step 3: Cross multiply
    89,406.32x = 123,380.22 × 49,119.20
  4. Step 4: Simplify right side
    89,406.32x = 6,060,337,702.22
  5. Step 5: Solve for x
    x = 6,060,337,702.22/89,406.32
  6. Step 6: Final answer
    x = 67,784.22

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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.