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Finding the Fourth Proportional to 61,108.58, 84,172.09 and 43,172.44

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Solution

The fourth proportional to 61,108.58, 84,172.09 and 43,172.44 is: 59,466.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,108.58 : 84,172.09 = 43,172.44 : x
  2. Step 2: Convert to fraction form
    61,108.58/84,172.09 = 43,172.44/x
  3. Step 3: Cross multiply
    61,108.58x = 84,172.09 × 43,172.44
  4. Step 4: Simplify right side
    61,108.58x = 3,633,913,868.48
  5. Step 5: Solve for x
    x = 3,633,913,868.48/61,108.58
  6. Step 6: Final answer
    x = 59,466.51

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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.