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Finding the Fourth Proportional to 80,420.61, 110,971.49 and 44,601.65

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Solution

The fourth proportional to 80,420.61, 110,971.49 and 44,601.65 is: 61,545.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,420.61 : 110,971.49 = 44,601.65 : x
  2. Step 2: Convert to fraction form
    80,420.61/110,971.49 = 44,601.65/x
  3. Step 3: Cross multiply
    80,420.61x = 110,971.49 × 44,601.65
  4. Step 4: Simplify right side
    80,420.61x = 4,949,511,556.96
  5. Step 5: Solve for x
    x = 4,949,511,556.96/80,420.61
  6. Step 6: Final answer
    x = 61,545.31

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1.5x scale

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.