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Finding the Fourth Proportional to 73,540.80, 110,116.80 and 57,859.20

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Solution

The fourth proportional to 73,540.80, 110,116.80 and 57,859.20 is: 86,635.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,540.80 : 110,116.80 = 57,859.20 : x
  2. Step 2: Convert to fraction form
    73,540.80/110,116.80 = 57,859.20/x
  3. Step 3: Cross multiply
    73,540.80x = 110,116.80 × 57,859.20
  4. Step 4: Simplify right side
    73,540.80x = 6,371,269,954.56
  5. Step 5: Solve for x
    x = 6,371,269,954.56/73,540.80
  6. Step 6: Final answer
    x = 86,635.85

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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.