Home / 80,822.40-111,504.24-48,979.68

Finding the Fourth Proportional to 80,822.40, 111,504.24 and 48,979.68

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Solution

The fourth proportional to 80,822.40, 111,504.24 and 48,979.68 is: 67,573.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,822.40 : 111,504.24 = 48,979.68 : x
  2. Step 2: Convert to fraction form
    80,822.40/111,504.24 = 48,979.68/x
  3. Step 3: Cross multiply
    80,822.40x = 111,504.24 × 48,979.68
  4. Step 4: Simplify right side
    80,822.40x = 5,461,441,993.84
  5. Step 5: Solve for x
    x = 5,461,441,993.84/80,822.40
  6. Step 6: Final answer
    x = 67,573.37

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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.