Home / 49,659.40-74,489.91-12,219.58

Finding the Fourth Proportional to 49,659.40, 74,489.91 and 12,219.58

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Solution

The fourth proportional to 49,659.40, 74,489.91 and 12,219.58 is: 18,329.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,659.40 : 74,489.91 = 12,219.58 : x
  2. Step 2: Convert to fraction form
    49,659.40/74,489.91 = 12,219.58/x
  3. Step 3: Cross multiply
    49,659.40x = 74,489.91 × 12,219.58
  4. Step 4: Simplify right side
    49,659.40x = 910,235,414.44
  5. Step 5: Solve for x
    x = 910,235,414.44/49,659.40
  6. Step 6: Final answer
    x = 18,329.57

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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.