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Finding the Fourth Proportional to 81,833.76, 112,936.50 and 50,008.74

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Solution

The fourth proportional to 81,833.76, 112,936.50 and 50,008.74 is: 69,015.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,833.76 : 112,936.50 = 50,008.74 : x
  2. Step 2: Convert to fraction form
    81,833.76/112,936.50 = 50,008.74/x
  3. Step 3: Cross multiply
    81,833.76x = 112,936.50 × 50,008.74
  4. Step 4: Simplify right side
    81,833.76x = 5,647,812,065.01
  5. Step 5: Solve for x
    x = 5,647,812,065.01/81,833.76
  6. Step 6: Final answer
    x = 69,015.67

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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.