Home / 89,760.96-123,869.66-49,474.80

Finding the Fourth Proportional to 89,760.96, 123,869.66 and 49,474.80

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Solution

The fourth proportional to 89,760.96, 123,869.66 and 49,474.80 is: 68,274.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,760.96 : 123,869.66 = 49,474.80 : x
  2. Step 2: Convert to fraction form
    89,760.96/123,869.66 = 49,474.80/x
  3. Step 3: Cross multiply
    89,760.96x = 123,869.66 × 49,474.80
  4. Step 4: Simplify right side
    89,760.96x = 6,128,426,407.19
  5. Step 5: Solve for x
    x = 6,128,426,407.19/89,760.96
  6. Step 6: Final answer
    x = 68,274.97

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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.