Home / 82,743.59-124,133.85-30,153.13

Finding the Fourth Proportional to 82,743.59, 124,133.85 and 30,153.13

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Solution

The fourth proportional to 82,743.59, 124,133.85 and 30,153.13 is: 45,236.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,743.59 : 124,133.85 = 30,153.13 : x
  2. Step 2: Convert to fraction form
    82,743.59/124,133.85 = 30,153.13/x
  3. Step 3: Cross multiply
    82,743.59x = 124,133.85 × 30,153.13
  4. Step 4: Simplify right side
    82,743.59x = 3,743,023,806.12
  5. Step 5: Solve for x
    x = 3,743,023,806.12/82,743.59
  6. Step 6: Final answer
    x = 45,236.42

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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.