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Finding the Fourth Proportional to 50,998.86, 70,377 and 28,337.55

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Solution

The fourth proportional to 50,998.86, 70,377 and 28,337.55 is: 39,105.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,998.86 : 70,377 = 28,337.55 : x
  2. Step 2: Convert to fraction form
    50,998.86/70,377 = 28,337.55/x
  3. Step 3: Cross multiply
    50,998.86x = 70,377 × 28,337.55
  4. Step 4: Simplify right side
    50,998.86x = 1,994,311,756.35
  5. Step 5: Solve for x
    x = 1,994,311,756.35/50,998.86
  6. Step 6: Final answer
    x = 39,105.03

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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.