Home / 92,383.20-138,589.32-30,039.12

Finding the Fourth Proportional to 92,383.20, 138,589.32 and 30,039.12

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Solution

The fourth proportional to 92,383.20, 138,589.32 and 30,039.12 is: 45,063.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,383.20 : 138,589.32 = 30,039.12 : x
  2. Step 2: Convert to fraction form
    92,383.20/138,589.32 = 30,039.12/x
  3. Step 3: Cross multiply
    92,383.20x = 138,589.32 × 30,039.12
  4. Step 4: Simplify right side
    92,383.20x = 4,163,101,214.20
  5. Step 5: Solve for x
    x = 4,163,101,214.20/92,383.20
  6. Step 6: Final answer
    x = 45,063.40

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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.