Home / 50,120.31-75,114.84-20,503.47

Finding the Fourth Proportional to 50,120.31, 75,114.84 and 20,503.47

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Solution

The fourth proportional to 50,120.31, 75,114.84 and 20,503.47 is: 30,728.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,120.31 : 75,114.84 = 20,503.47 : x
  2. Step 2: Convert to fraction form
    50,120.31/75,114.84 = 20,503.47/x
  3. Step 3: Cross multiply
    50,120.31x = 75,114.84 × 20,503.47
  4. Step 4: Simplify right side
    50,120.31x = 1,540,114,868.49
  5. Step 5: Solve for x
    x = 1,540,114,868.49/50,120.31
  6. Step 6: Final answer
    x = 30,728.36

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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.