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Finding the Fourth Proportional to 84,957.38, 117,241.32 and 47,231.63

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Solution

The fourth proportional to 84,957.38, 117,241.32 and 47,231.63 is: 65,179.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,957.38 : 117,241.32 = 47,231.63 : x
  2. Step 2: Convert to fraction form
    84,957.38/117,241.32 = 47,231.63/x
  3. Step 3: Cross multiply
    84,957.38x = 117,241.32 × 47,231.63
  4. Step 4: Simplify right side
    84,957.38x = 5,537,498,060.75
  5. Step 5: Solve for x
    x = 5,537,498,060.75/84,957.38
  6. Step 6: Final answer
    x = 65,179.72

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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.