Home / 84,581.85-126,823.56-31,995.43

Finding the Fourth Proportional to 84,581.85, 126,823.56 and 31,995.43

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Solution

The fourth proportional to 84,581.85, 126,823.56 and 31,995.43 is: 47,974.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,581.85 : 126,823.56 = 31,995.43 : x
  2. Step 2: Convert to fraction form
    84,581.85/126,823.56 = 31,995.43/x
  3. Step 3: Cross multiply
    84,581.85x = 126,823.56 × 31,995.43
  4. Step 4: Simplify right side
    84,581.85x = 4,057,774,336.33
  5. Step 5: Solve for x
    x = 4,057,774,336.33/84,581.85
  6. Step 6: Final answer
    x = 47,974.53

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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.