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Finding the Fourth Proportional to 71,168.39, 98,202.20 and 40,942.16

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Solution

The fourth proportional to 71,168.39, 98,202.20 and 40,942.16 is: 56,494.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,168.39 : 98,202.20 = 40,942.16 : x
  2. Step 2: Convert to fraction form
    71,168.39/98,202.20 = 40,942.16/x
  3. Step 3: Cross multiply
    71,168.39x = 98,202.20 × 40,942.16
  4. Step 4: Simplify right side
    71,168.39x = 4,020,609,489.03
  5. Step 5: Solve for x
    x = 4,020,609,489.03/71,168.39
  6. Step 6: Final answer
    x = 56,494.32

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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.