Home / 57,243.30-79,000.50-31,757.90

Finding the Fourth Proportional to 57,243.30, 79,000.50 and 31,757.90

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Solution

The fourth proportional to 57,243.30, 79,000.50 and 31,757.90 is: 43,828.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,243.30 : 79,000.50 = 31,757.90 : x
  2. Step 2: Convert to fraction form
    57,243.30/79,000.50 = 31,757.90/x
  3. Step 3: Cross multiply
    57,243.30x = 79,000.50 × 31,757.90
  4. Step 4: Simplify right side
    57,243.30x = 2,508,889,978.95
  5. Step 5: Solve for x
    x = 2,508,889,978.95/57,243.30
  6. Step 6: Final answer
    x = 43,828.54

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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.