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Finding the Fourth Proportional to 81,754.82, 112,820.95 and 45,944.75

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Solution

The fourth proportional to 81,754.82, 112,820.95 and 45,944.75 is: 63,403.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,754.82 : 112,820.95 = 45,944.75 : x
  2. Step 2: Convert to fraction form
    81,754.82/112,820.95 = 45,944.75/x
  3. Step 3: Cross multiply
    81,754.82x = 112,820.95 × 45,944.75
  4. Step 4: Simplify right side
    81,754.82x = 5,183,530,682.00
  5. Step 5: Solve for x
    x = 5,183,530,682.00/81,754.82
  6. Step 6: Final answer
    x = 63,403.37

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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.