Home / 57,218.53-78,958.40-31,723.41

Finding the Fourth Proportional to 57,218.53, 78,958.40 and 31,723.41

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Solution

The fourth proportional to 57,218.53, 78,958.40 and 31,723.41 is: 43,776.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,218.53 : 78,958.40 = 31,723.41 : x
  2. Step 2: Convert to fraction form
    57,218.53/78,958.40 = 31,723.41/x
  3. Step 3: Cross multiply
    57,218.53x = 78,958.40 × 31,723.41
  4. Step 4: Simplify right side
    57,218.53x = 2,504,829,435.08
  5. Step 5: Solve for x
    x = 2,504,829,435.08/57,218.53
  6. Step 6: Final answer
    x = 43,776.55

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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.