Home / 68,877.78-95,052.74-38,665.28

Finding the Fourth Proportional to 68,877.78, 95,052.74 and 38,665.28

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Solution

The fourth proportional to 68,877.78, 95,052.74 and 38,665.28 is: 53,358.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,877.78 : 95,052.74 = 38,665.28 : x
  2. Step 2: Convert to fraction form
    68,877.78/95,052.74 = 38,665.28/x
  3. Step 3: Cross multiply
    68,877.78x = 95,052.74 × 38,665.28
  4. Step 4: Simplify right side
    68,877.78x = 3,675,240,806.87
  5. Step 5: Solve for x
    x = 3,675,240,806.87/68,877.78
  6. Step 6: Final answer
    x = 53,358.87

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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.