Home / 80,760.62-111,496.02-53,991.74

Finding the Fourth Proportional to 80,760.62, 111,496.02 and 53,991.74

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Solution

The fourth proportional to 80,760.62, 111,496.02 and 53,991.74 is: 74,539.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,760.62 : 111,496.02 = 53,991.74 : x
  2. Step 2: Convert to fraction form
    80,760.62/111,496.02 = 53,991.74/x
  3. Step 3: Cross multiply
    80,760.62x = 111,496.02 × 53,991.74
  4. Step 4: Simplify right side
    80,760.62x = 6,019,864,122.87
  5. Step 5: Solve for x
    x = 6,019,864,122.87/80,760.62
  6. Step 6: Final answer
    x = 74,539.60

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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.