Home / 80,840.62-121,244.52-21,662.46

Finding the Fourth Proportional to 80,840.62, 121,244.52 and 21,662.46

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Solution

The fourth proportional to 80,840.62, 121,244.52 and 21,662.46 is: 32,489.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,840.62 : 121,244.52 = 21,662.46 : x
  2. Step 2: Convert to fraction form
    80,840.62/121,244.52 = 21,662.46/x
  3. Step 3: Cross multiply
    80,840.62x = 121,244.52 × 21,662.46
  4. Step 4: Simplify right side
    80,840.62x = 2,626,454,564.72
  5. Step 5: Solve for x
    x = 2,626,454,564.72/80,840.62
  6. Step 6: Final answer
    x = 32,489.29

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1.5x scale

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.