Home / 50,271.72-75,406.80-12,321.36

Finding the Fourth Proportional to 50,271.72, 75,406.80 and 12,321.36

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Solution

The fourth proportional to 50,271.72, 75,406.80 and 12,321.36 is: 18,481.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,271.72 : 75,406.80 = 12,321.36 : x
  2. Step 2: Convert to fraction form
    50,271.72/75,406.80 = 12,321.36/x
  3. Step 3: Cross multiply
    50,271.72x = 75,406.80 × 12,321.36
  4. Step 4: Simplify right side
    50,271.72x = 929,114,329.25
  5. Step 5: Solve for x
    x = 929,114,329.25/50,271.72
  6. Step 6: Final answer
    x = 18,481.85

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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.