Home / 50,375.21-75,513.60-20,813.72

Finding the Fourth Proportional to 50,375.21, 75,513.60 and 20,813.72

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Solution

The fourth proportional to 50,375.21, 75,513.60 and 20,813.72 is: 31,200.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,375.21 : 75,513.60 = 20,813.72 : x
  2. Step 2: Convert to fraction form
    50,375.21/75,513.60 = 20,813.72/x
  3. Step 3: Cross multiply
    50,375.21x = 75,513.60 × 20,813.72
  4. Step 4: Simplify right side
    50,375.21x = 1,571,718,549.02
  5. Step 5: Solve for x
    x = 1,571,718,549.02/50,375.21
  6. Step 6: Final answer
    x = 31,200.24

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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.