Home / 80,646.95-111,299.03-48,382.79

Finding the Fourth Proportional to 80,646.95, 111,299.03 and 48,382.79

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Solution

The fourth proportional to 80,646.95, 111,299.03 and 48,382.79 is: 66,771.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,646.95 : 111,299.03 = 48,382.79 : x
  2. Step 2: Convert to fraction form
    80,646.95/111,299.03 = 48,382.79/x
  3. Step 3: Cross multiply
    80,646.95x = 111,299.03 × 48,382.79
  4. Step 4: Simplify right side
    80,646.95x = 5,384,956,797.28
  5. Step 5: Solve for x
    x = 5,384,956,797.28/80,646.95
  6. Step 6: Final answer
    x = 66,771.98

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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.