Home / 80,766.86-121,150.41-21,602.54

Finding the Fourth Proportional to 80,766.86, 121,150.41 and 21,602.54

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Solution

The fourth proportional to 80,766.86, 121,150.41 and 21,602.54 is: 32,403.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,766.86 : 121,150.41 = 21,602.54 : x
  2. Step 2: Convert to fraction form
    80,766.86/121,150.41 = 21,602.54/x
  3. Step 3: Cross multiply
    80,766.86x = 121,150.41 × 21,602.54
  4. Step 4: Simplify right side
    80,766.86x = 2,617,155,972.29
  5. Step 5: Solve for x
    x = 2,617,155,972.29/80,766.86
  6. Step 6: Final answer
    x = 32,403.84

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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.