Home / 80,364.08-120,554.22-21,203.84

Finding the Fourth Proportional to 80,364.08, 120,554.22 and 21,203.84

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Solution

The fourth proportional to 80,364.08, 120,554.22 and 21,203.84 is: 31,807.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,364.08 : 120,554.22 = 21,203.84 : x
  2. Step 2: Convert to fraction form
    80,364.08/120,554.22 = 21,203.84/x
  3. Step 3: Cross multiply
    80,364.08x = 120,554.22 × 21,203.84
  4. Step 4: Simplify right side
    80,364.08x = 2,556,212,392.20
  5. Step 5: Solve for x
    x = 2,556,212,392.20/80,364.08
  6. Step 6: Final answer
    x = 31,807.90

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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.