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Finding the Fourth Proportional to 57,423.78, 79,244.88 and 31,929.87

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Solution

The fourth proportional to 57,423.78, 79,244.88 and 31,929.87 is: 44,063.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,423.78 : 79,244.88 = 31,929.87 : x
  2. Step 2: Convert to fraction form
    57,423.78/79,244.88 = 31,929.87/x
  3. Step 3: Cross multiply
    57,423.78x = 79,244.88 × 31,929.87
  4. Step 4: Simplify right side
    57,423.78x = 2,530,278,716.57
  5. Step 5: Solve for x
    x = 2,530,278,716.57/57,423.78
  6. Step 6: Final answer
    x = 44,063.26

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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.