Home / 71,472.18-98,629.08-39,644.04

Finding the Fourth Proportional to 71,472.18, 98,629.08 and 39,644.04

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Solution

The fourth proportional to 71,472.18, 98,629.08 and 39,644.04 is: 54,707.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,472.18 : 98,629.08 = 39,644.04 : x
  2. Step 2: Convert to fraction form
    71,472.18/98,629.08 = 39,644.04/x
  3. Step 3: Cross multiply
    71,472.18x = 98,629.08 × 39,644.04
  4. Step 4: Simplify right side
    71,472.18x = 3,910,054,699.54
  5. Step 5: Solve for x
    x = 3,910,054,699.54/71,472.18
  6. Step 6: Final answer
    x = 54,707.37

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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.