Home / 80,996.22-121,495.41-28,407.24

Finding the Fourth Proportional to 80,996.22, 121,495.41 and 28,407.24

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Solution

The fourth proportional to 80,996.22, 121,495.41 and 28,407.24 is: 42,611.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,996.22 : 121,495.41 = 28,407.24 : x
  2. Step 2: Convert to fraction form
    80,996.22/121,495.41 = 28,407.24/x
  3. Step 3: Cross multiply
    80,996.22x = 121,495.41 × 28,407.24
  4. Step 4: Simplify right side
    80,996.22x = 3,451,349,270.77
  5. Step 5: Solve for x
    x = 3,451,349,270.77/80,996.22
  6. Step 6: Final answer
    x = 42,611.24

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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.