Home / 57,268.28-79,030.13-31,778.57

Finding the Fourth Proportional to 57,268.28, 79,030.13 and 31,778.57

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Solution

The fourth proportional to 57,268.28, 79,030.13 and 31,778.57 is: 43,854.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,268.28 : 79,030.13 = 31,778.57 : x
  2. Step 2: Convert to fraction form
    57,268.28/79,030.13 = 31,778.57/x
  3. Step 3: Cross multiply
    57,268.28x = 79,030.13 × 31,778.57
  4. Step 4: Simplify right side
    57,268.28x = 2,511,463,964.27
  5. Step 5: Solve for x
    x = 2,511,463,964.27/57,268.28
  6. Step 6: Final answer
    x = 43,854.37

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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.