Home / 92,917.12-139,387.20-30,609.28

Finding the Fourth Proportional to 92,917.12, 139,387.20 and 30,609.28

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Solution

The fourth proportional to 92,917.12, 139,387.20 and 30,609.28 is: 45,917.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,917.12 : 139,387.20 = 30,609.28 : x
  2. Step 2: Convert to fraction form
    92,917.12/139,387.20 = 30,609.28/x
  3. Step 3: Cross multiply
    92,917.12x = 139,387.20 × 30,609.28
  4. Step 4: Simplify right side
    92,917.12x = 4,266,541,833.22
  5. Step 5: Solve for x
    x = 4,266,541,833.22/92,917.12
  6. Step 6: Final answer
    x = 45,917.71

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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.