Home / 71,141.29-98,170.72-38,869.47

Finding the Fourth Proportional to 71,141.29, 98,170.72 and 38,869.47

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Solution

The fourth proportional to 71,141.29, 98,170.72 and 38,869.47 is: 53,637.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,141.29 : 98,170.72 = 38,869.47 : x
  2. Step 2: Convert to fraction form
    71,141.29/98,170.72 = 38,869.47/x
  3. Step 3: Cross multiply
    71,141.29x = 98,170.72 × 38,869.47
  4. Step 4: Simplify right side
    71,141.29x = 3,815,843,758.74
  5. Step 5: Solve for x
    x = 3,815,843,758.74/71,141.29
  6. Step 6: Final answer
    x = 53,637.54

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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.