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Finding the Fourth Proportional to 71,169.60, 98,212.32 and 39,337.68

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Solution

The fourth proportional to 71,169.60, 98,212.32 and 39,337.68 is: 54,285.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,169.60 : 98,212.32 = 39,337.68 : x
  2. Step 2: Convert to fraction form
    71,169.60/98,212.32 = 39,337.68/x
  3. Step 3: Cross multiply
    71,169.60x = 98,212.32 × 39,337.68
  4. Step 4: Simplify right side
    71,169.60x = 3,863,444,816.22
  5. Step 5: Solve for x
    x = 3,863,444,816.22/71,169.60
  6. Step 6: Final answer
    x = 54,285.04

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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.