Home / 36,479.40-54,719.12-28,171.56

Finding the Fourth Proportional to 36,479.40, 54,719.12 and 28,171.56

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Solution

The fourth proportional to 36,479.40, 54,719.12 and 28,171.56 is: 42,257.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,479.40 : 54,719.12 = 28,171.56 : x
  2. Step 2: Convert to fraction form
    36,479.40/54,719.12 = 28,171.56/x
  3. Step 3: Cross multiply
    36,479.40x = 54,719.12 × 28,171.56
  4. Step 4: Simplify right side
    36,479.40x = 1,541,522,972.23
  5. Step 5: Solve for x
    x = 1,541,522,972.23/36,479.40
  6. Step 6: Final answer
    x = 42,257.36

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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.