Home / 40,722.66-61,112.85-18,538.89

Finding the Fourth Proportional to 40,722.66, 61,112.85 and 18,538.89

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Solution

The fourth proportional to 40,722.66, 61,112.85 and 18,538.89 is: 27,821.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,722.66 : 61,112.85 = 18,538.89 : x
  2. Step 2: Convert to fraction form
    40,722.66/61,112.85 = 18,538.89/x
  3. Step 3: Cross multiply
    40,722.66x = 61,112.85 × 18,538.89
  4. Step 4: Simplify right side
    40,722.66x = 1,132,964,105.04
  5. Step 5: Solve for x
    x = 1,132,964,105.04/40,722.66
  6. Step 6: Final answer
    x = 27,821.47

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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.