Home / 43,200.40-64,819.42-15,140.66

Finding the Fourth Proportional to 43,200.40, 64,819.42 and 15,140.66

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Solution

The fourth proportional to 43,200.40, 64,819.42 and 15,140.66 is: 22,717.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,200.40 : 64,819.42 = 15,140.66 : x
  2. Step 2: Convert to fraction form
    43,200.40/64,819.42 = 15,140.66/x
  3. Step 3: Cross multiply
    43,200.40x = 64,819.42 × 15,140.66
  4. Step 4: Simplify right side
    43,200.40x = 981,408,799.62
  5. Step 5: Solve for x
    x = 981,408,799.62/43,200.40
  6. Step 6: Final answer
    x = 22,717.59

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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.