Home / 71,111.52-98,132.04-39,275.28

Finding the Fourth Proportional to 71,111.52, 98,132.04 and 39,275.28

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Solution

The fourth proportional to 71,111.52, 98,132.04 and 39,275.28 is: 54,198.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,111.52 : 98,132.04 = 39,275.28 : x
  2. Step 2: Convert to fraction form
    71,111.52/98,132.04 = 39,275.28/x
  3. Step 3: Cross multiply
    71,111.52x = 98,132.04 × 39,275.28
  4. Step 4: Simplify right side
    71,111.52x = 3,854,163,347.97
  5. Step 5: Solve for x
    x = 3,854,163,347.97/71,111.52
  6. Step 6: Final answer
    x = 54,198.86

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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.