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Finding the Fourth Proportional to 64,379.88, 88,769.52 and 60,394.68

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Solution

The fourth proportional to 64,379.88, 88,769.52 and 60,394.68 is: 83,274.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,379.88 : 88,769.52 = 60,394.68 : x
  2. Step 2: Convert to fraction form
    64,379.88/88,769.52 = 60,394.68/x
  3. Step 3: Cross multiply
    64,379.88x = 88,769.52 × 60,394.68
  4. Step 4: Simplify right side
    64,379.88x = 5,361,206,754.15
  5. Step 5: Solve for x
    x = 5,361,206,754.15/64,379.88
  6. Step 6: Final answer
    x = 83,274.57

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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.