Home / 41,202-61,799.90-13,120.92

Finding the Fourth Proportional to 41,202, 61,799.90 and 13,120.92

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Solution

The fourth proportional to 41,202, 61,799.90 and 13,120.92 is: 19,680.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,202 : 61,799.90 = 13,120.92 : x
  2. Step 2: Convert to fraction form
    41,202/61,799.90 = 13,120.92/x
  3. Step 3: Cross multiply
    41,202x = 61,799.90 × 13,120.92
  4. Step 4: Simplify right side
    41,202x = 810,871,478.30
  5. Step 5: Solve for x
    x = 810,871,478.30/41,202
  6. Step 6: Final answer
    x = 19,680.39

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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.