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Finding the Fourth Proportional to 50,751.35, 70,036.99 and 28,091.90

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Solution

The fourth proportional to 50,751.35, 70,036.99 and 28,091.90 is: 38,766.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,751.35 : 70,036.99 = 28,091.90 : x
  2. Step 2: Convert to fraction form
    50,751.35/70,036.99 = 28,091.90/x
  3. Step 3: Cross multiply
    50,751.35x = 70,036.99 × 28,091.90
  4. Step 4: Simplify right side
    50,751.35x = 1,967,471,769.20
  5. Step 5: Solve for x
    x = 1,967,471,769.20/50,751.35
  6. Step 6: Final answer
    x = 38,766.89

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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.