Home / 50,456.60-75,689.04-20,868.92

Finding the Fourth Proportional to 50,456.60, 75,689.04 and 20,868.92

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Solution

The fourth proportional to 50,456.60, 75,689.04 and 20,868.92 is: 31,305.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,456.60 : 75,689.04 = 20,868.92 : x
  2. Step 2: Convert to fraction form
    50,456.60/75,689.04 = 20,868.92/x
  3. Step 3: Cross multiply
    50,456.60x = 75,689.04 × 20,868.92
  4. Step 4: Simplify right side
    50,456.60x = 1,579,548,520.64
  5. Step 5: Solve for x
    x = 1,579,548,520.64/50,456.60
  6. Step 6: Final answer
    x = 31,305.09

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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.