Home / 49,660.31-74,489.84-12,220.85

Finding the Fourth Proportional to 49,660.31, 74,489.84 and 12,220.85

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Solution

The fourth proportional to 49,660.31, 74,489.84 and 12,220.85 is: 18,331.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,660.31 : 74,489.84 = 12,220.85 : x
  2. Step 2: Convert to fraction form
    49,660.31/74,489.84 = 12,220.85/x
  3. Step 3: Cross multiply
    49,660.31x = 74,489.84 × 12,220.85
  4. Step 4: Simplify right side
    49,660.31x = 910,329,100.06
  5. Step 5: Solve for x
    x = 910,329,100.06/49,660.31
  6. Step 6: Final answer
    x = 18,331.12

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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.