Home / 40,121.08-55,352.22-25,981.72

Finding the Fourth Proportional to 40,121.08, 55,352.22 and 25,981.72

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Solution

The fourth proportional to 40,121.08, 55,352.22 and 25,981.72 is: 35,845.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,121.08 : 55,352.22 = 25,981.72 : x
  2. Step 2: Convert to fraction form
    40,121.08/55,352.22 = 25,981.72/x
  3. Step 3: Cross multiply
    40,121.08x = 55,352.22 × 25,981.72
  4. Step 4: Simplify right side
    40,121.08x = 1,438,145,881.42
  5. Step 5: Solve for x
    x = 1,438,145,881.42/40,121.08
  6. Step 6: Final answer
    x = 35,845.14

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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.