Home / 65,767.24-90,738.11-40,247

Finding the Fourth Proportional to 65,767.24, 90,738.11 and 40,247

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Solution

The fourth proportional to 65,767.24, 90,738.11 and 40,247 is: 55,528.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,767.24 : 90,738.11 = 40,247 : x
  2. Step 2: Convert to fraction form
    65,767.24/90,738.11 = 40,247/x
  3. Step 3: Cross multiply
    65,767.24x = 90,738.11 × 40,247
  4. Step 4: Simplify right side
    65,767.24x = 3,651,936,713.17
  5. Step 5: Solve for x
    x = 3,651,936,713.17/65,767.24
  6. Step 6: Final answer
    x = 55,528.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.