Home / 40,120.55-55,380.93-23,353.55

Finding the Fourth Proportional to 40,120.55, 55,380.93 and 23,353.55

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Solution

The fourth proportional to 40,120.55, 55,380.93 and 23,353.55 is: 32,236.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,120.55 : 55,380.93 = 23,353.55 : x
  2. Step 2: Convert to fraction form
    40,120.55/55,380.93 = 23,353.55/x
  3. Step 3: Cross multiply
    40,120.55x = 55,380.93 × 23,353.55
  4. Step 4: Simplify right side
    40,120.55x = 1,293,341,040.90
  5. Step 5: Solve for x
    x = 1,293,341,040.90/40,120.55
  6. Step 6: Final answer
    x = 32,236.38

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Double scale
Find fourth proportional to 40,121.55, 55,382.31 and 23,354.55
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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.