Home / 43,199.40-64,817.92-15,139.66

Finding the Fourth Proportional to 43,199.40, 64,817.92 and 15,139.66

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Solution

The fourth proportional to 43,199.40, 64,817.92 and 15,139.66 is: 22,716.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,199.40 : 64,817.92 = 15,139.66 : x
  2. Step 2: Convert to fraction form
    43,199.40/64,817.92 = 15,139.66/x
  3. Step 3: Cross multiply
    43,199.40x = 64,817.92 × 15,139.66
  4. Step 4: Simplify right side
    43,199.40x = 981,321,270.71
  5. Step 5: Solve for x
    x = 981,321,270.71/43,199.40
  6. Step 6: Final answer
    x = 22,716.09

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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.