Home / 45,921.09-68,873.55-12,633.12

Finding the Fourth Proportional to 45,921.09, 68,873.55 and 12,633.12

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Solution

The fourth proportional to 45,921.09, 68,873.55 and 12,633.12 is: 18,947.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,921.09 : 68,873.55 = 12,633.12 : x
  2. Step 2: Convert to fraction form
    45,921.09/68,873.55 = 12,633.12/x
  3. Step 3: Cross multiply
    45,921.09x = 68,873.55 × 12,633.12
  4. Step 4: Simplify right side
    45,921.09x = 870,087,821.98
  5. Step 5: Solve for x
    x = 870,087,821.98/45,921.09
  6. Step 6: Final answer
    x = 18,947.46

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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.