Home / 80,550.08-120,714.72-60,812.48

Finding the Fourth Proportional to 80,550.08, 120,714.72 and 60,812.48

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Solution

The fourth proportional to 80,550.08, 120,714.72 and 60,812.48 is: 91,135.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,550.08 : 120,714.72 = 60,812.48 : x
  2. Step 2: Convert to fraction form
    80,550.08/120,714.72 = 60,812.48/x
  3. Step 3: Cross multiply
    80,550.08x = 120,714.72 × 60,812.48
  4. Step 4: Simplify right side
    80,550.08x = 7,340,961,495.71
  5. Step 5: Solve for x
    x = 7,340,961,495.71/80,550.08
  6. Step 6: Final answer
    x = 91,135.37

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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.