Home / 84,939.69-127,410.31-25,775.36

Finding the Fourth Proportional to 84,939.69, 127,410.31 and 25,775.36

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Solution

The fourth proportional to 84,939.69, 127,410.31 and 25,775.36 is: 38,663.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,939.69 : 127,410.31 = 25,775.36 : x
  2. Step 2: Convert to fraction form
    84,939.69/127,410.31 = 25,775.36/x
  3. Step 3: Cross multiply
    84,939.69x = 127,410.31 × 25,775.36
  4. Step 4: Simplify right side
    84,939.69x = 3,284,046,862.05
  5. Step 5: Solve for x
    x = 3,284,046,862.05/84,939.69
  6. Step 6: Final answer
    x = 38,663.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.