Home / 81,751.08-112,819.46-45,941.80

Finding the Fourth Proportional to 81,751.08, 112,819.46 and 45,941.80

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Solution

The fourth proportional to 81,751.08, 112,819.46 and 45,941.80 is: 63,401.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,751.08 : 112,819.46 = 45,941.80 : x
  2. Step 2: Convert to fraction form
    81,751.08/112,819.46 = 45,941.80/x
  3. Step 3: Cross multiply
    81,751.08x = 112,819.46 × 45,941.80
  4. Step 4: Simplify right side
    81,751.08x = 5,183,129,067.43
  5. Step 5: Solve for x
    x = 5,183,129,067.43/81,751.08
  6. Step 6: Final answer
    x = 63,401.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.