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Finding the Fourth Proportional to 76,108.88, 114,163.80 and 19,948.50

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Solution

The fourth proportional to 76,108.88, 114,163.80 and 19,948.50 is: 29,922.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,108.88 : 114,163.80 = 19,948.50 : x
  2. Step 2: Convert to fraction form
    76,108.88/114,163.80 = 19,948.50/x
  3. Step 3: Cross multiply
    76,108.88x = 114,163.80 × 19,948.50
  4. Step 4: Simplify right side
    76,108.88x = 2,277,396,555.65
  5. Step 5: Solve for x
    x = 2,277,396,555.65/76,108.88
  6. Step 6: Final answer
    x = 29,922.88

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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.