Home / 72,071.76-108,121.46-22,142.94

Finding the Fourth Proportional to 72,071.76, 108,121.46 and 22,142.94

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Solution

The fourth proportional to 72,071.76, 108,121.46 and 22,142.94 is: 33,218.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,071.76 : 108,121.46 = 22,142.94 : x
  2. Step 2: Convert to fraction form
    72,071.76/108,121.46 = 22,142.94/x
  3. Step 3: Cross multiply
    72,071.76x = 108,121.46 × 22,142.94
  4. Step 4: Simplify right side
    72,071.76x = 2,394,127,001.49
  5. Step 5: Solve for x
    x = 2,394,127,001.49/72,071.76
  6. Step 6: Final answer
    x = 33,218.66

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1.5x scale

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.