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Finding the Fourth Proportional to 50,902.86, 70,243.56 and 28,241.61

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Solution

The fourth proportional to 50,902.86, 70,243.56 and 28,241.61 is: 38,972.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,902.86 : 70,243.56 = 28,241.61 : x
  2. Step 2: Convert to fraction form
    50,902.86/70,243.56 = 28,241.61/x
  3. Step 3: Cross multiply
    50,902.86x = 70,243.56 × 28,241.61
  4. Step 4: Simplify right side
    50,902.86x = 1,983,790,875.31
  5. Step 5: Solve for x
    x = 1,983,790,875.31/50,902.86
  6. Step 6: Final answer
    x = 38,972.09

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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.