Home / 90,811.30-136,217.06-40,882.10

Finding the Fourth Proportional to 90,811.30, 136,217.06 and 40,882.10

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Solution

The fourth proportional to 90,811.30, 136,217.06 and 40,882.10 is: 61,323.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,811.30 : 136,217.06 = 40,882.10 : x
  2. Step 2: Convert to fraction form
    90,811.30/136,217.06 = 40,882.10/x
  3. Step 3: Cross multiply
    90,811.30x = 136,217.06 × 40,882.10
  4. Step 4: Simplify right side
    90,811.30x = 5,568,839,468.63
  5. Step 5: Solve for x
    x = 5,568,839,468.63/90,811.30
  6. Step 6: Final answer
    x = 61,323.20

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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.