Home / 74,129.28-111,204.77-21,531.93

Finding the Fourth Proportional to 74,129.28, 111,204.77 and 21,531.93

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Solution

The fourth proportional to 74,129.28, 111,204.77 and 21,531.93 is: 32,301.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,129.28 : 111,204.77 = 21,531.93 : x
  2. Step 2: Convert to fraction form
    74,129.28/111,204.77 = 21,531.93/x
  3. Step 3: Cross multiply
    74,129.28x = 111,204.77 × 21,531.93
  4. Step 4: Simplify right side
    74,129.28x = 2,394,453,215.65
  5. Step 5: Solve for x
    x = 2,394,453,215.65/74,129.28
  6. Step 6: Final answer
    x = 32,301.05

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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.