Home / 75,309.34-112,964.82-22,719.28

Finding the Fourth Proportional to 75,309.34, 112,964.82 and 22,719.28

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Solution

The fourth proportional to 75,309.34, 112,964.82 and 22,719.28 is: 34,079.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,309.34 : 112,964.82 = 22,719.28 : x
  2. Step 2: Convert to fraction form
    75,309.34/112,964.82 = 22,719.28/x
  3. Step 3: Cross multiply
    75,309.34x = 112,964.82 × 22,719.28
  4. Step 4: Simplify right side
    75,309.34x = 2,566,479,375.73
  5. Step 5: Solve for x
    x = 2,566,479,375.73/75,309.34
  6. Step 6: Final answer
    x = 34,079.16

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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.