Home / 84,546.13-126,833.80-28,391.66

Finding the Fourth Proportional to 84,546.13, 126,833.80 and 28,391.66

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Solution

The fourth proportional to 84,546.13, 126,833.80 and 28,391.66 is: 42,592.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,546.13 : 126,833.80 = 28,391.66 : x
  2. Step 2: Convert to fraction form
    84,546.13/126,833.80 = 28,391.66/x
  3. Step 3: Cross multiply
    84,546.13x = 126,833.80 × 28,391.66
  4. Step 4: Simplify right side
    84,546.13x = 3,601,022,663.26
  5. Step 5: Solve for x
    x = 3,601,022,663.26/84,546.13
  6. Step 6: Final answer
    x = 42,592.40

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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.