Home / 50,830.91-76,220.45-21,240.80

Finding the Fourth Proportional to 50,830.91, 76,220.45 and 21,240.80

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Solution

The fourth proportional to 50,830.91, 76,220.45 and 21,240.80 is: 31,850.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,830.91 : 76,220.45 = 21,240.80 : x
  2. Step 2: Convert to fraction form
    50,830.91/76,220.45 = 21,240.80/x
  3. Step 3: Cross multiply
    50,830.91x = 76,220.45 × 21,240.80
  4. Step 4: Simplify right side
    50,830.91x = 1,618,983,228.16
  5. Step 5: Solve for x
    x = 1,618,983,228.16/50,830.91
  6. Step 6: Final answer
    x = 31,850.37

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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.