Home / 76,550.08-114,536.58-68,780.56

Finding the Fourth Proportional to 76,550.08, 114,536.58 and 68,780.56

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Solution

The fourth proportional to 76,550.08, 114,536.58 and 68,780.56 is: 102,911.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,550.08 : 114,536.58 = 68,780.56 : x
  2. Step 2: Convert to fraction form
    76,550.08/114,536.58 = 68,780.56/x
  3. Step 3: Cross multiply
    76,550.08x = 114,536.58 × 68,780.56
  4. Step 4: Simplify right side
    76,550.08x = 7,877,890,112.88
  5. Step 5: Solve for x
    x = 7,877,890,112.88/76,550.08
  6. Step 6: Final answer
    x = 102,911.59

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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.