Home / 84,330.27-126,612.05-42,806.43

Finding the Fourth Proportional to 84,330.27, 126,612.05 and 42,806.43

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Solution

The fourth proportional to 84,330.27, 126,612.05 and 42,806.43 is: 64,268.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,330.27 : 126,612.05 = 42,806.43 : x
  2. Step 2: Convert to fraction form
    84,330.27/126,612.05 = 42,806.43/x
  3. Step 3: Cross multiply
    84,330.27x = 126,612.05 × 42,806.43
  4. Step 4: Simplify right side
    84,330.27x = 5,419,809,641.45
  5. Step 5: Solve for x
    x = 5,419,809,641.45/84,330.27
  6. Step 6: Final answer
    x = 64,268.85

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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.