Home / 57,229.48-78,974.49-31,736.89

Finding the Fourth Proportional to 57,229.48, 78,974.49 and 31,736.89

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Solution

The fourth proportional to 57,229.48, 78,974.49 and 31,736.89 is: 43,795.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,229.48 : 78,974.49 = 31,736.89 : x
  2. Step 2: Convert to fraction form
    57,229.48/78,974.49 = 31,736.89/x
  3. Step 3: Cross multiply
    57,229.48x = 78,974.49 × 31,736.89
  4. Step 4: Simplify right side
    57,229.48x = 2,506,404,701.94
  5. Step 5: Solve for x
    x = 2,506,404,701.94/57,229.48
  6. Step 6: Final answer
    x = 43,795.69

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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.