Home / 50,020.50-69,029.57-30,149.78

Finding the Fourth Proportional to 50,020.50, 69,029.57 and 30,149.78

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Solution

The fourth proportional to 50,020.50, 69,029.57 and 30,149.78 is: 41,607.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,020.50 : 69,029.57 = 30,149.78 : x
  2. Step 2: Convert to fraction form
    50,020.50/69,029.57 = 30,149.78/x
  3. Step 3: Cross multiply
    50,020.50x = 69,029.57 × 30,149.78
  4. Step 4: Simplify right side
    50,020.50x = 2,081,226,348.99
  5. Step 5: Solve for x
    x = 2,081,226,348.99/50,020.50
  6. Step 6: Final answer
    x = 41,607.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.