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Finding the Fourth Proportional to 45,438, 62,703.77 and 25,294.85

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Solution

The fourth proportional to 45,438, 62,703.77 and 25,294.85 is: 34,906.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,438 : 62,703.77 = 25,294.85 : x
  2. Step 2: Convert to fraction form
    45,438/62,703.77 = 25,294.85/x
  3. Step 3: Cross multiply
    45,438x = 62,703.77 × 25,294.85
  4. Step 4: Simplify right side
    45,438x = 1,586,082,016.59
  5. Step 5: Solve for x
    x = 1,586,082,016.59/45,438
  6. Step 6: Final answer
    x = 34,906.51

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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.