Home / 76,939.11-115,421.42-27,006.25

Finding the Fourth Proportional to 76,939.11, 115,421.42 and 27,006.25

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Solution

The fourth proportional to 76,939.11, 115,421.42 and 27,006.25 is: 40,513.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,939.11 : 115,421.42 = 27,006.25 : x
  2. Step 2: Convert to fraction form
    76,939.11/115,421.42 = 27,006.25/x
  3. Step 3: Cross multiply
    76,939.11x = 115,421.42 × 27,006.25
  4. Step 4: Simplify right side
    76,939.11x = 3,117,099,834.39
  5. Step 5: Solve for x
    x = 3,117,099,834.39/76,939.11
  6. Step 6: Final answer
    x = 40,513.86

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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.