Home / 50,990.36-76,400.91-31,227.40

Finding the Fourth Proportional to 50,990.36, 76,400.91 and 31,227.40

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Solution

The fourth proportional to 50,990.36, 76,400.91 and 31,227.40 is: 46,789.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,990.36 : 76,400.91 = 31,227.40 : x
  2. Step 2: Convert to fraction form
    50,990.36/76,400.91 = 31,227.40/x
  3. Step 3: Cross multiply
    50,990.36x = 76,400.91 × 31,227.40
  4. Step 4: Simplify right side
    50,990.36x = 2,385,801,613.64
  5. Step 5: Solve for x
    x = 2,385,801,613.64/50,990.36
  6. Step 6: Final answer
    x = 46,789.27

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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.