Home / 40,168.70-55,420.13-23,170.66

Finding the Fourth Proportional to 40,168.70, 55,420.13 and 23,170.66

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Solution

The fourth proportional to 40,168.70, 55,420.13 and 23,170.66 is: 31,968.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,168.70 : 55,420.13 = 23,170.66 : x
  2. Step 2: Convert to fraction form
    40,168.70/55,420.13 = 23,170.66/x
  3. Step 3: Cross multiply
    40,168.70x = 55,420.13 × 23,170.66
  4. Step 4: Simplify right side
    40,168.70x = 1,284,120,989.39
  5. Step 5: Solve for x
    x = 1,284,120,989.39/40,168.70
  6. Step 6: Final answer
    x = 31,968.20

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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.