Home / 89,812.40-123,939.05-49,525.29

Finding the Fourth Proportional to 89,812.40, 123,939.05 and 49,525.29

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Solution

The fourth proportional to 89,812.40, 123,939.05 and 49,525.29 is: 68,343.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,812.40 : 123,939.05 = 49,525.29 : x
  2. Step 2: Convert to fraction form
    89,812.40/123,939.05 = 49,525.29/x
  3. Step 3: Cross multiply
    89,812.40x = 123,939.05 × 49,525.29
  4. Step 4: Simplify right side
    89,812.40x = 6,138,117,145.95
  5. Step 5: Solve for x
    x = 6,138,117,145.95/89,812.40
  6. Step 6: Final answer
    x = 68,343.76

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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.