Home / 80,766.77-121,150.13-21,600.91

Finding the Fourth Proportional to 80,766.77, 121,150.13 and 21,600.91

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Solution

The fourth proportional to 80,766.77, 121,150.13 and 21,600.91 is: 32,401.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,766.77 : 121,150.13 = 21,600.91 : x
  2. Step 2: Convert to fraction form
    80,766.77/121,150.13 = 21,600.91/x
  3. Step 3: Cross multiply
    80,766.77x = 121,150.13 × 21,600.91
  4. Step 4: Simplify right side
    80,766.77x = 2,616,953,054.62
  5. Step 5: Solve for x
    x = 2,616,953,054.62/80,766.77
  6. Step 6: Final answer
    x = 32,401.36

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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.