Home / 66,260.68-99,379.86-18,872.44

Finding the Fourth Proportional to 66,260.68, 99,379.86 and 18,872.44

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Solution

The fourth proportional to 66,260.68, 99,379.86 and 18,872.44 is: 28,305.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,260.68 : 99,379.86 = 18,872.44 : x
  2. Step 2: Convert to fraction form
    66,260.68/99,379.86 = 18,872.44/x
  3. Step 3: Cross multiply
    66,260.68x = 99,379.86 × 18,872.44
  4. Step 4: Simplify right side
    66,260.68x = 1,875,540,445.06
  5. Step 5: Solve for x
    x = 1,875,540,445.06/66,260.68
  6. Step 6: Final answer
    x = 28,305.48

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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.