Home / 76,795.30-115,198.80-26,178.61

Finding the Fourth Proportional to 76,795.30, 115,198.80 and 26,178.61

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Solution

The fourth proportional to 76,795.30, 115,198.80 and 26,178.61 is: 39,269.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,795.30 : 115,198.80 = 26,178.61 : x
  2. Step 2: Convert to fraction form
    76,795.30/115,198.80 = 26,178.61/x
  3. Step 3: Cross multiply
    76,795.30x = 115,198.80 × 26,178.61
  4. Step 4: Simplify right side
    76,795.30x = 3,015,744,457.67
  5. Step 5: Solve for x
    x = 3,015,744,457.67/76,795.30
  6. Step 6: Final answer
    x = 39,269.91

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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.