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Finding the Fourth Proportional to 97,891.26, 135,100.71 and 54,874.86

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Solution

The fourth proportional to 97,891.26, 135,100.71 and 54,874.86 is: 75,733.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,891.26 : 135,100.71 = 54,874.86 : x
  2. Step 2: Convert to fraction form
    97,891.26/135,100.71 = 54,874.86/x
  3. Step 3: Cross multiply
    97,891.26x = 135,100.71 × 54,874.86
  4. Step 4: Simplify right side
    97,891.26x = 7,413,632,547.15
  5. Step 5: Solve for x
    x = 7,413,632,547.15/97,891.26
  6. Step 6: Final answer
    x = 75,733.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.