Home / 76,835.70-115,297.30-61,351.74

Finding the Fourth Proportional to 76,835.70, 115,297.30 and 61,351.74

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Solution

The fourth proportional to 76,835.70, 115,297.30 and 61,351.74 is: 92,062.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,835.70 : 115,297.30 = 61,351.74 : x
  2. Step 2: Convert to fraction form
    76,835.70/115,297.30 = 61,351.74/x
  3. Step 3: Cross multiply
    76,835.70x = 115,297.30 × 61,351.74
  4. Step 4: Simplify right side
    76,835.70x = 7,073,689,972.30
  5. Step 5: Solve for x
    x = 7,073,689,972.30/76,835.70
  6. Step 6: Final answer
    x = 92,062.54

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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.