Home / 80,654.66-121,006.60-41,239.46

Finding the Fourth Proportional to 80,654.66, 121,006.60 and 41,239.46

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Solution

The fourth proportional to 80,654.66, 121,006.60 and 41,239.46 is: 61,871.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,654.66 : 121,006.60 = 41,239.46 : x
  2. Step 2: Convert to fraction form
    80,654.66/121,006.60 = 41,239.46/x
  3. Step 3: Cross multiply
    80,654.66x = 121,006.60 × 41,239.46
  4. Step 4: Simplify right side
    80,654.66x = 4,990,246,840.44
  5. Step 5: Solve for x
    x = 4,990,246,840.44/80,654.66
  6. Step 6: Final answer
    x = 61,871.77

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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.