Home / 81,661.22-112,702.46-51,446.04

Finding the Fourth Proportional to 81,661.22, 112,702.46 and 51,446.04

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Solution

The fourth proportional to 81,661.22, 112,702.46 and 51,446.04 is: 71,001.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,661.22 : 112,702.46 = 51,446.04 : x
  2. Step 2: Convert to fraction form
    81,661.22/112,702.46 = 51,446.04/x
  3. Step 3: Cross multiply
    81,661.22x = 112,702.46 × 51,446.04
  4. Step 4: Simplify right side
    81,661.22x = 5,798,094,585.39
  5. Step 5: Solve for x
    x = 5,798,094,585.39/81,661.22
  6. Step 6: Final answer
    x = 71,001.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.