Home / 72,042.09-108,071.75-22,115.62

Finding the Fourth Proportional to 72,042.09, 108,071.75 and 22,115.62

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Solution

The fourth proportional to 72,042.09, 108,071.75 and 22,115.62 is: 33,176.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,042.09 : 108,071.75 = 22,115.62 : x
  2. Step 2: Convert to fraction form
    72,042.09/108,071.75 = 22,115.62/x
  3. Step 3: Cross multiply
    72,042.09x = 108,071.75 × 22,115.62
  4. Step 4: Simplify right side
    72,042.09x = 2,390,073,755.74
  5. Step 5: Solve for x
    x = 2,390,073,755.74/72,042.09
  6. Step 6: Final answer
    x = 33,176.07

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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.