Home / 71,181.28-98,221.62-39,345.82

Finding the Fourth Proportional to 71,181.28, 98,221.62 and 39,345.82

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Solution

The fourth proportional to 71,181.28, 98,221.62 and 39,345.82 is: 54,292.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,181.28 : 98,221.62 = 39,345.82 : x
  2. Step 2: Convert to fraction form
    71,181.28/98,221.62 = 39,345.82/x
  3. Step 3: Cross multiply
    71,181.28x = 98,221.62 × 39,345.82
  4. Step 4: Simplify right side
    71,181.28x = 3,864,610,180.63
  5. Step 5: Solve for x
    x = 3,864,610,180.63/71,181.28
  6. Step 6: Final answer
    x = 54,292.51

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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.