Home / 89,741.20-123,842.28-49,455.28

Finding the Fourth Proportional to 89,741.20, 123,842.28 and 49,455.28

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Solution

The fourth proportional to 89,741.20, 123,842.28 and 49,455.28 is: 68,247.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,741.20 : 123,842.28 = 49,455.28 : x
  2. Step 2: Convert to fraction form
    89,741.20/123,842.28 = 49,455.28/x
  3. Step 3: Cross multiply
    89,741.20x = 123,842.28 × 49,455.28
  4. Step 4: Simplify right side
    89,741.20x = 6,124,654,633.24
  5. Step 5: Solve for x
    x = 6,124,654,633.24/89,741.20
  6. Step 6: Final answer
    x = 68,247.97

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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.