Home / 76,869.80-115,321.40-23,561.98

Finding the Fourth Proportional to 76,869.80, 115,321.40 and 23,561.98

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Solution

The fourth proportional to 76,869.80, 115,321.40 and 23,561.98 is: 35,348.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,869.80 : 115,321.40 = 23,561.98 : x
  2. Step 2: Convert to fraction form
    76,869.80/115,321.40 = 23,561.98/x
  3. Step 3: Cross multiply
    76,869.80x = 115,321.40 × 23,561.98
  4. Step 4: Simplify right side
    76,869.80x = 2,717,200,520.37
  5. Step 5: Solve for x
    x = 2,717,200,520.37/76,869.80
  6. Step 6: Final answer
    x = 35,348.09

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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.