Home / 43,839.28-65,758.92-40,690

Finding the Fourth Proportional to 43,839.28, 65,758.92 and 40,690

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Solution

The fourth proportional to 43,839.28, 65,758.92 and 40,690 is: 61,035.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,839.28 : 65,758.92 = 40,690 : x
  2. Step 2: Convert to fraction form
    43,839.28/65,758.92 = 40,690/x
  3. Step 3: Cross multiply
    43,839.28x = 65,758.92 × 40,690
  4. Step 4: Simplify right side
    43,839.28x = 2,675,730,454.80
  5. Step 5: Solve for x
    x = 2,675,730,454.80/43,839.28
  6. Step 6: Final answer
    x = 61,035.00

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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.