Home / 66,747.15-100,120.32-26,784.18

Finding the Fourth Proportional to 66,747.15, 100,120.32 and 26,784.18

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Solution

The fourth proportional to 66,747.15, 100,120.32 and 26,784.18 is: 40,176.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,747.15 : 100,120.32 = 26,784.18 : x
  2. Step 2: Convert to fraction form
    66,747.15/100,120.32 = 26,784.18/x
  3. Step 3: Cross multiply
    66,747.15x = 100,120.32 × 26,784.18
  4. Step 4: Simplify right side
    66,747.15x = 2,681,640,672.54
  5. Step 5: Solve for x
    x = 2,681,640,672.54/66,747.15
  6. Step 6: Final answer
    x = 40,176.11

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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.