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Finding the Fourth Proportional to 50,489, 69,674.84 and 29,280.56

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Solution

The fourth proportional to 50,489, 69,674.84 and 29,280.56 is: 40,407.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,489 : 69,674.84 = 29,280.56 : x
  2. Step 2: Convert to fraction form
    50,489/69,674.84 = 29,280.56/x
  3. Step 3: Cross multiply
    50,489x = 69,674.84 × 29,280.56
  4. Step 4: Simplify right side
    50,489x = 2,040,118,333.11
  5. Step 5: Solve for x
    x = 2,040,118,333.11/50,489
  6. Step 6: Final answer
    x = 40,407.18

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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.