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Finding the Fourth Proportional to 71,133.36, 98,166 and 39,304.32

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Solution

The fourth proportional to 71,133.36, 98,166 and 39,304.32 is: 54,241.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,133.36 : 98,166 = 39,304.32 : x
  2. Step 2: Convert to fraction form
    71,133.36/98,166 = 39,304.32/x
  3. Step 3: Cross multiply
    71,133.36x = 98,166 × 39,304.32
  4. Step 4: Simplify right side
    71,133.36x = 3,858,347,877.12
  5. Step 5: Solve for x
    x = 3,858,347,877.12/71,133.36
  6. Step 6: Final answer
    x = 54,241.05

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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.