Home / 57,421.38-79,244.13-31,930.35

Finding the Fourth Proportional to 57,421.38, 79,244.13 and 31,930.35

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Solution

The fourth proportional to 57,421.38, 79,244.13 and 31,930.35 is: 44,065.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,421.38 : 79,244.13 = 31,930.35 : x
  2. Step 2: Convert to fraction form
    57,421.38/79,244.13 = 31,930.35/x
  3. Step 3: Cross multiply
    57,421.38x = 79,244.13 × 31,930.35
  4. Step 4: Simplify right side
    57,421.38x = 2,530,292,806.35
  5. Step 5: Solve for x
    x = 2,530,292,806.35/57,421.38
  6. Step 6: Final answer
    x = 44,065.34

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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.