Home / 42,812.76-64,212.66-11,650.44

Finding the Fourth Proportional to 42,812.76, 64,212.66 and 11,650.44

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Solution

The fourth proportional to 42,812.76, 64,212.66 and 11,650.44 is: 17,473.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,812.76 : 64,212.66 = 11,650.44 : x
  2. Step 2: Convert to fraction form
    42,812.76/64,212.66 = 11,650.44/x
  3. Step 3: Cross multiply
    42,812.76x = 64,212.66 × 11,650.44
  4. Step 4: Simplify right side
    42,812.76x = 748,105,742.57
  5. Step 5: Solve for x
    x = 748,105,742.57/42,812.76
  6. Step 6: Final answer
    x = 17,473.90

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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.