Home / 57,023.15-85,478.85-31,734.71

Finding the Fourth Proportional to 57,023.15, 85,478.85 and 31,734.71

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Solution

The fourth proportional to 57,023.15, 85,478.85 and 31,734.71 is: 47,570.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,023.15 : 85,478.85 = 31,734.71 : x
  2. Step 2: Convert to fraction form
    57,023.15/85,478.85 = 31,734.71/x
  3. Step 3: Cross multiply
    57,023.15x = 85,478.85 × 31,734.71
  4. Step 4: Simplify right side
    57,023.15x = 2,712,646,729.58
  5. Step 5: Solve for x
    x = 2,712,646,729.58/57,023.15
  6. Step 6: Final answer
    x = 47,570.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.