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Finding the Fourth Proportional to 57,872.80, 79,864.08 and 32,722.40

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Solution

The fourth proportional to 57,872.80, 79,864.08 and 32,722.40 is: 45,156.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,872.80 : 79,864.08 = 32,722.40 : x
  2. Step 2: Convert to fraction form
    57,872.80/79,864.08 = 32,722.40/x
  3. Step 3: Cross multiply
    57,872.80x = 79,864.08 × 32,722.40
  4. Step 4: Simplify right side
    57,872.80x = 2,613,344,371.39
  5. Step 5: Solve for x
    x = 2,613,344,371.39/57,872.80
  6. Step 6: Final answer
    x = 45,156.69

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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.