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Finding the Fourth Proportional to 57,979.20, 80,013.60 and 32,827.20

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Solution

The fourth proportional to 57,979.20, 80,013.60 and 32,827.20 is: 45,302.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,979.20 : 80,013.60 = 32,827.20 : x
  2. Step 2: Convert to fraction form
    57,979.20/80,013.60 = 32,827.20/x
  3. Step 3: Cross multiply
    57,979.20x = 80,013.60 × 32,827.20
  4. Step 4: Simplify right side
    57,979.20x = 2,626,622,449.92
  5. Step 5: Solve for x
    x = 2,626,622,449.92/57,979.20
  6. Step 6: Final answer
    x = 45,302.84

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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.