Home / 74,049.75-102,191.22-40,515.75

Finding the Fourth Proportional to 74,049.75, 102,191.22 and 40,515.75

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Solution

The fourth proportional to 74,049.75, 102,191.22 and 40,515.75 is: 55,913.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,049.75 : 102,191.22 = 40,515.75 : x
  2. Step 2: Convert to fraction form
    74,049.75/102,191.22 = 40,515.75/x
  3. Step 3: Cross multiply
    74,049.75x = 102,191.22 × 40,515.75
  4. Step 4: Simplify right side
    74,049.75x = 4,140,353,921.72
  5. Step 5: Solve for x
    x = 4,140,353,921.72/74,049.75
  6. Step 6: Final answer
    x = 55,913.14

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1.5x scale

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.