Home / 84,223.30-126,261.51-31,618.66

Finding the Fourth Proportional to 84,223.30, 126,261.51 and 31,618.66

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Solution

The fourth proportional to 84,223.30, 126,261.51 and 31,618.66 is: 47,400.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,223.30 : 126,261.51 = 31,618.66 : x
  2. Step 2: Convert to fraction form
    84,223.30/126,261.51 = 31,618.66/x
  3. Step 3: Cross multiply
    84,223.30x = 126,261.51 × 31,618.66
  4. Step 4: Simplify right side
    84,223.30x = 3,992,219,755.78
  5. Step 5: Solve for x
    x = 3,992,219,755.78/84,223.30
  6. Step 6: Final answer
    x = 47,400.42

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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.