Home / 39,769.20-54,886.72-25,663.12

Finding the Fourth Proportional to 39,769.20, 54,886.72 and 25,663.12

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Solution

The fourth proportional to 39,769.20, 54,886.72 and 25,663.12 is: 35,418.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,769.20 : 54,886.72 = 25,663.12 : x
  2. Step 2: Convert to fraction form
    39,769.20/54,886.72 = 25,663.12/x
  3. Step 3: Cross multiply
    39,769.20x = 54,886.72 × 25,663.12
  4. Step 4: Simplify right side
    39,769.20x = 1,408,564,481.77
  5. Step 5: Solve for x
    x = 1,408,564,481.77/39,769.20
  6. Step 6: Final answer
    x = 35,418.48

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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.