Home / 43,316.56-64,976.76-12,151.12

Finding the Fourth Proportional to 43,316.56, 64,976.76 and 12,151.12

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Solution

The fourth proportional to 43,316.56, 64,976.76 and 12,151.12 is: 18,227.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,316.56 : 64,976.76 = 12,151.12 : x
  2. Step 2: Convert to fraction form
    43,316.56/64,976.76 = 12,151.12/x
  3. Step 3: Cross multiply
    43,316.56x = 64,976.76 × 12,151.12
  4. Step 4: Simplify right side
    43,316.56x = 789,540,407.97
  5. Step 5: Solve for x
    x = 789,540,407.97/43,316.56
  6. Step 6: Final answer
    x = 18,227.22

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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.