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Finding the Fourth Proportional to 80,497.87, 111,087.45 and 50,300.73

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Solution

The fourth proportional to 80,497.87, 111,087.45 and 50,300.73 is: 69,415.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,497.87 : 111,087.45 = 50,300.73 : x
  2. Step 2: Convert to fraction form
    80,497.87/111,087.45 = 50,300.73/x
  3. Step 3: Cross multiply
    80,497.87x = 111,087.45 × 50,300.73
  4. Step 4: Simplify right side
    80,497.87x = 5,587,779,828.84
  5. Step 5: Solve for x
    x = 5,587,779,828.84/80,497.87
  6. Step 6: Final answer
    x = 69,415.25

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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.