Home / 49,778.20-74,667.16-40,994.56

Finding the Fourth Proportional to 49,778.20, 74,667.16 and 40,994.56

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Solution

The fourth proportional to 49,778.20, 74,667.16 and 40,994.56 is: 61,491.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,778.20 : 74,667.16 = 40,994.56 : x
  2. Step 2: Convert to fraction form
    49,778.20/74,667.16 = 40,994.56/x
  3. Step 3: Cross multiply
    49,778.20x = 74,667.16 × 40,994.56
  4. Step 4: Simplify right side
    49,778.20x = 3,060,947,370.65
  5. Step 5: Solve for x
    x = 3,060,947,370.65/49,778.20
  6. Step 6: Final answer
    x = 61,491.72

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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.