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Finding the Fourth Proportional to 71,394.65, 98,525.89 and 39,127.12

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Solution

The fourth proportional to 71,394.65, 98,525.89 and 39,127.12 is: 53,996.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,394.65 : 98,525.89 = 39,127.12 : x
  2. Step 2: Convert to fraction form
    71,394.65/98,525.89 = 39,127.12/x
  3. Step 3: Cross multiply
    71,394.65x = 98,525.89 × 39,127.12
  4. Step 4: Simplify right side
    71,394.65x = 3,855,034,321.14
  5. Step 5: Solve for x
    x = 3,855,034,321.14/71,394.65
  6. Step 6: Final answer
    x = 53,996.12

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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.