Home / 57,191.20-78,920.32-32,040.16

Finding the Fourth Proportional to 57,191.20, 78,920.32 and 32,040.16

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Solution

The fourth proportional to 57,191.20, 78,920.32 and 32,040.16 is: 44,213.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,191.20 : 78,920.32 = 32,040.16 : x
  2. Step 2: Convert to fraction form
    57,191.20/78,920.32 = 32,040.16/x
  3. Step 3: Cross multiply
    57,191.20x = 78,920.32 × 32,040.16
  4. Step 4: Simplify right side
    57,191.20x = 2,528,619,680.05
  5. Step 5: Solve for x
    x = 2,528,619,680.05/57,191.20
  6. Step 6: Final answer
    x = 44,213.44

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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.