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Finding the Fourth Proportional to 71,196.28, 98,246.94 and 39,363.28

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Solution

The fourth proportional to 71,196.28, 98,246.94 and 39,363.28 is: 54,319.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,196.28 : 98,246.94 = 39,363.28 : x
  2. Step 2: Convert to fraction form
    71,196.28/98,246.94 = 39,363.28/x
  3. Step 3: Cross multiply
    71,196.28x = 98,246.94 × 39,363.28
  4. Step 4: Simplify right side
    71,196.28x = 3,867,321,808.36
  5. Step 5: Solve for x
    x = 3,867,321,808.36/71,196.28
  6. Step 6: Final answer
    x = 54,319.16

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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.