Home / 84,451.67-126,695.56-31,143.79

Finding the Fourth Proportional to 84,451.67, 126,695.56 and 31,143.79

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Solution

The fourth proportional to 84,451.67, 126,695.56 and 31,143.79 is: 46,722.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,451.67 : 126,695.56 = 31,143.79 : x
  2. Step 2: Convert to fraction form
    84,451.67/126,695.56 = 31,143.79/x
  3. Step 3: Cross multiply
    84,451.67x = 126,695.56 × 31,143.79
  4. Step 4: Simplify right side
    84,451.67x = 3,945,779,914.57
  5. Step 5: Solve for x
    x = 3,945,779,914.57/84,451.67
  6. Step 6: Final answer
    x = 46,722.34

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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.