Home / 71,409.42-98,542.17-39,143.34

Finding the Fourth Proportional to 71,409.42, 98,542.17 and 39,143.34

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Solution

The fourth proportional to 71,409.42, 98,542.17 and 39,143.34 is: 54,016.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,409.42 : 98,542.17 = 39,143.34 : x
  2. Step 2: Convert to fraction form
    71,409.42/98,542.17 = 39,143.34/x
  3. Step 3: Cross multiply
    71,409.42x = 98,542.17 × 39,143.34
  4. Step 4: Simplify right side
    71,409.42x = 3,857,269,664.65
  5. Step 5: Solve for x
    x = 3,857,269,664.65/71,409.42
  6. Step 6: Final answer
    x = 54,016.26

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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.