Home / 49,660.56-74,490.21-12,221.10

Finding the Fourth Proportional to 49,660.56, 74,490.21 and 12,221.10

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Solution

The fourth proportional to 49,660.56, 74,490.21 and 12,221.10 is: 18,331.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,660.56 : 74,490.21 = 12,221.10 : x
  2. Step 2: Convert to fraction form
    49,660.56/74,490.21 = 12,221.10/x
  3. Step 3: Cross multiply
    49,660.56x = 74,490.21 × 12,221.10
  4. Step 4: Simplify right side
    49,660.56x = 910,352,305.43
  5. Step 5: Solve for x
    x = 910,352,305.43/49,660.56
  6. Step 6: Final answer
    x = 18,331.49

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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.