Home / 92,384.20-138,590.82-30,040.12

Finding the Fourth Proportional to 92,384.20, 138,590.82 and 30,040.12

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Solution

The fourth proportional to 92,384.20, 138,590.82 and 30,040.12 is: 45,064.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,384.20 : 138,590.82 = 30,040.12 : x
  2. Step 2: Convert to fraction form
    92,384.20/138,590.82 = 30,040.12/x
  3. Step 3: Cross multiply
    92,384.20x = 138,590.82 × 30,040.12
  4. Step 4: Simplify right side
    92,384.20x = 4,163,284,863.70
  5. Step 5: Solve for x
    x = 4,163,284,863.70/92,384.20
  6. Step 6: Final answer
    x = 45,064.90

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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.