Home / 89,742.30-123,845.23-49,457.54

Finding the Fourth Proportional to 89,742.30, 123,845.23 and 49,457.54

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Solution

The fourth proportional to 89,742.30, 123,845.23 and 49,457.54 is: 68,251.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,742.30 : 123,845.23 = 49,457.54 : x
  2. Step 2: Convert to fraction form
    89,742.30/123,845.23 = 49,457.54/x
  3. Step 3: Cross multiply
    89,742.30x = 123,845.23 × 49,457.54
  4. Step 4: Simplify right side
    89,742.30x = 6,125,080,416.53
  5. Step 5: Solve for x
    x = 6,125,080,416.53/89,742.30
  6. Step 6: Final answer
    x = 68,251.88

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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.