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Finding the Fourth Proportional to 61,095.88, 91,630.62 and 21,654.28

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Solution

The fourth proportional to 61,095.88, 91,630.62 and 21,654.28 is: 32,476.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,095.88 : 91,630.62 = 21,654.28 : x
  2. Step 2: Convert to fraction form
    61,095.88/91,630.62 = 21,654.28/x
  3. Step 3: Cross multiply
    61,095.88x = 91,630.62 × 21,654.28
  4. Step 4: Simplify right side
    61,095.88x = 1,984,195,102.05
  5. Step 5: Solve for x
    x = 1,984,195,102.05/61,095.88
  6. Step 6: Final answer
    x = 32,476.74

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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.