Home / 89,851.05-123,990.03-54,034.11

Finding the Fourth Proportional to 89,851.05, 123,990.03 and 54,034.11

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Solution

The fourth proportional to 89,851.05, 123,990.03 and 54,034.11 is: 74,564.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,851.05 : 123,990.03 = 54,034.11 : x
  2. Step 2: Convert to fraction form
    89,851.05/123,990.03 = 54,034.11/x
  3. Step 3: Cross multiply
    89,851.05x = 123,990.03 × 54,034.11
  4. Step 4: Simplify right side
    89,851.05x = 6,699,690,919.92
  5. Step 5: Solve for x
    x = 6,699,690,919.92/89,851.05
  6. Step 6: Final answer
    x = 74,564.41

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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.