Home / 65,723.00-90,691.25-40,236.55

Finding the Fourth Proportional to 65,723.00, 90,691.25 and 40,236.55

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Solution

The fourth proportional to 65,723.00, 90,691.25 and 40,236.55 is: 55,522.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,723.00 : 90,691.25 = 40,236.55 : x
  2. Step 2: Convert to fraction form
    65,723.00/90,691.25 = 40,236.55/x
  3. Step 3: Cross multiply
    65,723.00x = 90,691.25 × 40,236.55
  4. Step 4: Simplify right side
    65,723.00x = 3,649,102,587.28
  5. Step 5: Solve for x
    x = 3,649,102,587.28/65,723.00
  6. Step 6: Final answer
    x = 55,522.46

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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.