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Finding the Fourth Proportional to 50,363.80, 75,545.70 and 30,680.80

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Solution

The fourth proportional to 50,363.80, 75,545.70 and 30,680.80 is: 46,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,363.80 : 75,545.70 = 30,680.80 : x
  2. Step 2: Convert to fraction form
    50,363.80/75,545.70 = 30,680.80/x
  3. Step 3: Cross multiply
    50,363.80x = 75,545.70 × 30,680.80
  4. Step 4: Simplify right side
    50,363.80x = 2,317,802,512.56
  5. Step 5: Solve for x
    x = 2,317,802,512.56/50,363.80
  6. Step 6: Final answer
    x = 46,021.20

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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.