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Finding the Fourth Proportional to 100,571.53, 150,854.92 and 50,638.21

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Solution

The fourth proportional to 100,571.53, 150,854.92 and 50,638.21 is: 75,956.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,571.53 : 150,854.92 = 50,638.21 : x
  2. Step 2: Convert to fraction form
    100,571.53/150,854.92 = 50,638.21/x
  3. Step 3: Cross multiply
    100,571.53x = 150,854.92 × 50,638.21
  4. Step 4: Simplify right side
    100,571.53x = 7,639,023,118.49
  5. Step 5: Solve for x
    x = 7,639,023,118.49/100,571.53
  6. Step 6: Final answer
    x = 75,956.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.