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Finding the Fourth Proportional to 71,161.04, 98,200.80 and 39,329.24

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Solution

The fourth proportional to 71,161.04, 98,200.80 and 39,329.24 is: 54,273.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,161.04 : 98,200.80 = 39,329.24 : x
  2. Step 2: Convert to fraction form
    71,161.04/98,200.80 = 39,329.24/x
  3. Step 3: Cross multiply
    71,161.04x = 98,200.80 × 39,329.24
  4. Step 4: Simplify right side
    71,161.04x = 3,862,162,831.39
  5. Step 5: Solve for x
    x = 3,862,162,831.39/71,161.04
  6. Step 6: Final answer
    x = 54,273.56

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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.