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Finding the Fourth Proportional to 71,660.08, 98,889.42 and 39,827.08

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Solution

The fourth proportional to 71,660.08, 98,889.42 and 39,827.08 is: 54,960.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,660.08 : 98,889.42 = 39,827.08 : x
  2. Step 2: Convert to fraction form
    71,660.08/98,889.42 = 39,827.08/x
  3. Step 3: Cross multiply
    71,660.08x = 98,889.42 × 39,827.08
  4. Step 4: Simplify right side
    71,660.08x = 3,938,476,841.49
  5. Step 5: Solve for x
    x = 3,938,476,841.49/71,660.08
  6. Step 6: Final answer
    x = 54,960.54

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1.5x scale

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.