Home / 65,723.19-90,699.81-40,229.04

Finding the Fourth Proportional to 65,723.19, 90,699.81 and 40,229.04

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Solution

The fourth proportional to 65,723.19, 90,699.81 and 40,229.04 is: 55,517.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,723.19 : 90,699.81 = 40,229.04 : x
  2. Step 2: Convert to fraction form
    65,723.19/90,699.81 = 40,229.04/x
  3. Step 3: Cross multiply
    65,723.19x = 90,699.81 × 40,229.04
  4. Step 4: Simplify right side
    65,723.19x = 3,648,766,284.48
  5. Step 5: Solve for x
    x = 3,648,766,284.48/65,723.19
  6. Step 6: Final answer
    x = 55,517.18

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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.