Home / 92,402.22-138,588.93-30,072.30

Finding the Fourth Proportional to 92,402.22, 138,588.93 and 30,072.30

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Solution

The fourth proportional to 92,402.22, 138,588.93 and 30,072.30 is: 45,103.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,402.22 : 138,588.93 = 30,072.30 : x
  2. Step 2: Convert to fraction form
    92,402.22/138,588.93 = 30,072.30/x
  3. Step 3: Cross multiply
    92,402.22x = 138,588.93 × 30,072.30
  4. Step 4: Simplify right side
    92,402.22x = 4,167,687,879.64
  5. Step 5: Solve for x
    x = 4,167,687,879.64/92,402.22
  6. Step 6: Final answer
    x = 45,103.76

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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.