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Finding the Fourth Proportional to 71,458.70, 98,606 and 39,627.04

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Solution

The fourth proportional to 71,458.70, 98,606 and 39,627.04 is: 54,681.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,458.70 : 98,606 = 39,627.04 : x
  2. Step 2: Convert to fraction form
    71,458.70/98,606 = 39,627.04/x
  3. Step 3: Cross multiply
    71,458.70x = 98,606 × 39,627.04
  4. Step 4: Simplify right side
    71,458.70x = 3,907,463,906.24
  5. Step 5: Solve for x
    x = 3,907,463,906.24/71,458.70
  6. Step 6: Final answer
    x = 54,681.43

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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.