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Finding the Fourth Proportional to 98,250.67, 135,578.64 and 55,801

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Solution

The fourth proportional to 98,250.67, 135,578.64 and 55,801 is: 77,001.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,250.67 : 135,578.64 = 55,801 : x
  2. Step 2: Convert to fraction form
    98,250.67/135,578.64 = 55,801/x
  3. Step 3: Cross multiply
    98,250.67x = 135,578.64 × 55,801
  4. Step 4: Simplify right side
    98,250.67x = 7,565,423,690.64
  5. Step 5: Solve for x
    x = 7,565,423,690.64/98,250.67
  6. Step 6: Final answer
    x = 77,001.24

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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.