Home / 76,559.10-114,514.65-68,718.30

Finding the Fourth Proportional to 76,559.10, 114,514.65 and 68,718.30

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Solution

The fourth proportional to 76,559.10, 114,514.65 and 68,718.30 is: 102,786.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,559.10 : 114,514.65 = 68,718.30 : x
  2. Step 2: Convert to fraction form
    76,559.10/114,514.65 = 68,718.30/x
  3. Step 3: Cross multiply
    76,559.10x = 114,514.65 × 68,718.30
  4. Step 4: Simplify right side
    76,559.10x = 7,869,252,073.10
  5. Step 5: Solve for x
    x = 7,869,252,073.10/76,559.10
  6. Step 6: Final answer
    x = 102,786.63

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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.