Home / 57,621.25-79,517.33-31,125.25

Finding the Fourth Proportional to 57,621.25, 79,517.33 and 31,125.25

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Solution

The fourth proportional to 57,621.25, 79,517.33 and 31,125.25 is: 42,952.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,621.25 : 79,517.33 = 31,125.25 : x
  2. Step 2: Convert to fraction form
    57,621.25/79,517.33 = 31,125.25/x
  3. Step 3: Cross multiply
    57,621.25x = 79,517.33 × 31,125.25
  4. Step 4: Simplify right side
    57,621.25x = 2,474,996,775.58
  5. Step 5: Solve for x
    x = 2,474,996,775.58/57,621.25
  6. Step 6: Final answer
    x = 42,952.85

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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.