Home / 92,628.22-138,993.81-45,243.85

Finding the Fourth Proportional to 92,628.22, 138,993.81 and 45,243.85

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Solution

The fourth proportional to 92,628.22, 138,993.81 and 45,243.85 is: 67,890.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,628.22 : 138,993.81 = 45,243.85 : x
  2. Step 2: Convert to fraction form
    92,628.22/138,993.81 = 45,243.85/x
  3. Step 3: Cross multiply
    92,628.22x = 138,993.81 × 45,243.85
  4. Step 4: Simplify right side
    92,628.22x = 6,288,615,090.57
  5. Step 5: Solve for x
    x = 6,288,615,090.57/92,628.22
  6. Step 6: Final answer
    x = 67,890.92

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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.