Home / 72,844.11-100,517.63-53,734.22

Finding the Fourth Proportional to 72,844.11, 100,517.63 and 53,734.22

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Solution

The fourth proportional to 72,844.11, 100,517.63 and 53,734.22 is: 74,147.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,844.11 : 100,517.63 = 53,734.22 : x
  2. Step 2: Convert to fraction form
    72,844.11/100,517.63 = 53,734.22/x
  3. Step 3: Cross multiply
    72,844.11x = 100,517.63 × 53,734.22
  4. Step 4: Simplify right side
    72,844.11x = 5,401,235,673.04
  5. Step 5: Solve for x
    x = 5,401,235,673.04/72,844.11
  6. Step 6: Final answer
    x = 74,147.87

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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.