Home / 74,360.20-111,540.29-21,769.68

Finding the Fourth Proportional to 74,360.20, 111,540.29 and 21,769.68

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Solution

The fourth proportional to 74,360.20, 111,540.29 and 21,769.68 is: 32,654.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,360.20 : 111,540.29 = 21,769.68 : x
  2. Step 2: Convert to fraction form
    74,360.20/111,540.29 = 21,769.68/x
  3. Step 3: Cross multiply
    74,360.20x = 111,540.29 × 21,769.68
  4. Step 4: Simplify right side
    74,360.20x = 2,428,196,420.41
  5. Step 5: Solve for x
    x = 2,428,196,420.41/74,360.20
  6. Step 6: Final answer
    x = 32,654.52

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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.