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Finding the Fourth Proportional to 49,758.79, 68,754.57 and 39,769.67

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Solution

The fourth proportional to 49,758.79, 68,754.57 and 39,769.67 is: 54,952.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,758.79 : 68,754.57 = 39,769.67 : x
  2. Step 2: Convert to fraction form
    49,758.79/68,754.57 = 39,769.67/x
  3. Step 3: Cross multiply
    49,758.79x = 68,754.57 × 39,769.67
  4. Step 4: Simplify right side
    49,758.79x = 2,734,346,017.27
  5. Step 5: Solve for x
    x = 2,734,346,017.27/49,758.79
  6. Step 6: Final answer
    x = 54,952.02

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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.