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Finding the Fourth Proportional to 84,865.86, 127,104.90 and 40,523.68

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Solution

The fourth proportional to 84,865.86, 127,104.90 and 40,523.68 is: 60,692.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,865.86 : 127,104.90 = 40,523.68 : x
  2. Step 2: Convert to fraction form
    84,865.86/127,104.90 = 40,523.68/x
  3. Step 3: Cross multiply
    84,865.86x = 127,104.90 × 40,523.68
  4. Step 4: Simplify right side
    84,865.86x = 5,150,758,294.03
  5. Step 5: Solve for x
    x = 5,150,758,294.03/84,865.86
  6. Step 6: Final answer
    x = 60,692.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.