Home / 76,808.75-106,045.07-73,079.91

Finding the Fourth Proportional to 76,808.75, 106,045.07 and 73,079.91

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Solution

The fourth proportional to 76,808.75, 106,045.07 and 73,079.91 is: 100,896.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,808.75 : 106,045.07 = 73,079.91 : x
  2. Step 2: Convert to fraction form
    76,808.75/106,045.07 = 73,079.91/x
  3. Step 3: Cross multiply
    76,808.75x = 106,045.07 × 73,079.91
  4. Step 4: Simplify right side
    76,808.75x = 7,749,763,806.14
  5. Step 5: Solve for x
    x = 7,749,763,806.14/76,808.75
  6. Step 6: Final answer
    x = 100,896.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.