Home / 57,212.20-78,939.96-34,554.88

Finding the Fourth Proportional to 57,212.20, 78,939.96 and 34,554.88

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Solution

The fourth proportional to 57,212.20, 78,939.96 and 34,554.88 is: 47,677.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,212.20 : 78,939.96 = 34,554.88 : x
  2. Step 2: Convert to fraction form
    57,212.20/78,939.96 = 34,554.88/x
  3. Step 3: Cross multiply
    57,212.20x = 78,939.96 × 34,554.88
  4. Step 4: Simplify right side
    57,212.20x = 2,727,760,845.00
  5. Step 5: Solve for x
    x = 2,727,760,845.00/57,212.20
  6. Step 6: Final answer
    x = 47,677.96

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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.