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Finding the Fourth Proportional to 85,357.98, 117,793.34 and 49,551.32

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Solution

The fourth proportional to 85,357.98, 117,793.34 and 49,551.32 is: 68,380.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,357.98 : 117,793.34 = 49,551.32 : x
  2. Step 2: Convert to fraction form
    85,357.98/117,793.34 = 49,551.32/x
  3. Step 3: Cross multiply
    85,357.98x = 117,793.34 × 49,551.32
  4. Step 4: Simplify right side
    85,357.98x = 5,836,815,484.21
  5. Step 5: Solve for x
    x = 5,836,815,484.21/85,357.98
  6. Step 6: Final answer
    x = 68,380.43

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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.