Home / 92,389.32-138,571.97-29,215.80

Finding the Fourth Proportional to 92,389.32, 138,571.97 and 29,215.80

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Solution

The fourth proportional to 92,389.32, 138,571.97 and 29,215.80 is: 43,819.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,389.32 : 138,571.97 = 29,215.80 : x
  2. Step 2: Convert to fraction form
    92,389.32/138,571.97 = 29,215.80/x
  3. Step 3: Cross multiply
    92,389.32x = 138,571.97 × 29,215.80
  4. Step 4: Simplify right side
    92,389.32x = 4,048,490,815.05
  5. Step 5: Solve for x
    x = 4,048,490,815.05/92,389.32
  6. Step 6: Final answer
    x = 43,819.90

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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.