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Finding the Fourth Proportional to 69,527.75, 104,294.87 and 20,279.75

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Solution

The fourth proportional to 69,527.75, 104,294.87 and 20,279.75 is: 30,420.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,527.75 : 104,294.87 = 20,279.75 : x
  2. Step 2: Convert to fraction form
    69,527.75/104,294.87 = 20,279.75/x
  3. Step 3: Cross multiply
    69,527.75x = 104,294.87 × 20,279.75
  4. Step 4: Simplify right side
    69,527.75x = 2,115,073,788.48
  5. Step 5: Solve for x
    x = 2,115,073,788.48/69,527.75
  6. Step 6: Final answer
    x = 30,420.57

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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.