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Finding the Fourth Proportional to 80,775.66, 111,563.73 and 53,871.41

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Solution

The fourth proportional to 80,775.66, 111,563.73 and 53,871.41 is: 74,404.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,775.66 : 111,563.73 = 53,871.41 : x
  2. Step 2: Convert to fraction form
    80,775.66/111,563.73 = 53,871.41/x
  3. Step 3: Cross multiply
    80,775.66x = 111,563.73 × 53,871.41
  4. Step 4: Simplify right side
    80,775.66x = 6,010,095,439.96
  5. Step 5: Solve for x
    x = 6,010,095,439.96/80,775.66
  6. Step 6: Final answer
    x = 74,404.78

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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.