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Finding the Fourth Proportional to 61,662.58, 92,620.12 and 40,632.78

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Solution

The fourth proportional to 61,662.58, 92,620.12 and 40,632.78 is: 61,032.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,662.58 : 92,620.12 = 40,632.78 : x
  2. Step 2: Convert to fraction form
    61,662.58/92,620.12 = 40,632.78/x
  3. Step 3: Cross multiply
    61,662.58x = 92,620.12 × 40,632.78
  4. Step 4: Simplify right side
    61,662.58x = 3,763,412,959.53
  5. Step 5: Solve for x
    x = 3,763,412,959.53/61,662.58
  6. Step 6: Final answer
    x = 61,032.36

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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.