Home / 65,825.24-90,839.26-40,331.66

Finding the Fourth Proportional to 65,825.24, 90,839.26 and 40,331.66

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Solution

The fourth proportional to 65,825.24, 90,839.26 and 40,331.66 is: 55,657.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,825.24 : 90,839.26 = 40,331.66 : x
  2. Step 2: Convert to fraction form
    65,825.24/90,839.26 = 40,331.66/x
  3. Step 3: Cross multiply
    65,825.24x = 90,839.26 × 40,331.66
  4. Step 4: Simplify right side
    65,825.24x = 3,663,698,148.97
  5. Step 5: Solve for x
    x = 3,663,698,148.97/65,825.24
  6. Step 6: Final answer
    x = 55,657.95

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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.