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Finding the Fourth Proportional to 73,247.28, 109,929.28 and 28,885.20

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Solution

The fourth proportional to 73,247.28, 109,929.28 and 28,885.20 is: 43,350.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,247.28 : 109,929.28 = 28,885.20 : x
  2. Step 2: Convert to fraction form
    73,247.28/109,929.28 = 28,885.20/x
  3. Step 3: Cross multiply
    73,247.28x = 109,929.28 × 28,885.20
  4. Step 4: Simplify right side
    73,247.28x = 3,175,329,238.66
  5. Step 5: Solve for x
    x = 3,175,329,238.66/73,247.28
  6. Step 6: Final answer
    x = 43,350.81

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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.