Home / 71,132.36-98,161.49-38,866.28

Finding the Fourth Proportional to 71,132.36, 98,161.49 and 38,866.28

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Solution

The fourth proportional to 71,132.36, 98,161.49 and 38,866.28 is: 53,634.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,132.36 : 98,161.49 = 38,866.28 : x
  2. Step 2: Convert to fraction form
    71,132.36/98,161.49 = 38,866.28/x
  3. Step 3: Cross multiply
    71,132.36x = 98,161.49 × 38,866.28
  4. Step 4: Simplify right side
    71,132.36x = 3,815,171,270.42
  5. Step 5: Solve for x
    x = 3,815,171,270.42/71,132.36
  6. Step 6: Final answer
    x = 53,634.82

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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.