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Finding the Fourth Proportional to 61,013.62, 91,504.02 and 21,560.14

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Solution

The fourth proportional to 61,013.62, 91,504.02 and 21,560.14 is: 32,334.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,013.62 : 91,504.02 = 21,560.14 : x
  2. Step 2: Convert to fraction form
    61,013.62/91,504.02 = 21,560.14/x
  3. Step 3: Cross multiply
    61,013.62x = 91,504.02 × 21,560.14
  4. Step 4: Simplify right side
    61,013.62x = 1,972,839,024.24
  5. Step 5: Solve for x
    x = 1,972,839,024.24/61,013.62
  6. Step 6: Final answer
    x = 32,334.41

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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.