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Finding the Fourth Proportional to 69,191.82, 103,408.63 and 50,511.20

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Solution

The fourth proportional to 69,191.82, 103,408.63 and 50,511.20 is: 75,490.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,191.82 : 103,408.63 = 50,511.20 : x
  2. Step 2: Convert to fraction form
    69,191.82/103,408.63 = 50,511.20/x
  3. Step 3: Cross multiply
    69,191.82x = 103,408.63 × 50,511.20
  4. Step 4: Simplify right side
    69,191.82x = 5,223,293,991.66
  5. Step 5: Solve for x
    x = 5,223,293,991.66/69,191.82
  6. Step 6: Final answer
    x = 75,490.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.