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Finding the Fourth Proportional to 85,954.21, 118,610.87 and 47,710.73

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Solution

The fourth proportional to 85,954.21, 118,610.87 and 47,710.73 is: 65,837.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,954.21 : 118,610.87 = 47,710.73 : x
  2. Step 2: Convert to fraction form
    85,954.21/118,610.87 = 47,710.73/x
  3. Step 3: Cross multiply
    85,954.21x = 118,610.87 × 47,710.73
  4. Step 4: Simplify right side
    85,954.21x = 5,659,011,251.61
  5. Step 5: Solve for x
    x = 5,659,011,251.61/85,954.21
  6. Step 6: Final answer
    x = 65,837.51

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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.