Home / 40,819.36-61,229.04-13,119.52

Finding the Fourth Proportional to 40,819.36, 61,229.04 and 13,119.52

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Solution

The fourth proportional to 40,819.36, 61,229.04 and 13,119.52 is: 19,679.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,819.36 : 61,229.04 = 13,119.52 : x
  2. Step 2: Convert to fraction form
    40,819.36/61,229.04 = 13,119.52/x
  3. Step 3: Cross multiply
    40,819.36x = 61,229.04 × 13,119.52
  4. Step 4: Simplify right side
    40,819.36x = 803,295,614.86
  5. Step 5: Solve for x
    x = 803,295,614.86/40,819.36
  6. Step 6: Final answer
    x = 19,679.28

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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.