Home / 68,788.22-103,182.32-45,409.19

Finding the Fourth Proportional to 68,788.22, 103,182.32 and 45,409.19

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Solution

The fourth proportional to 68,788.22, 103,182.32 and 45,409.19 is: 68,113.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,788.22 : 103,182.32 = 45,409.19 : x
  2. Step 2: Convert to fraction form
    68,788.22/103,182.32 = 45,409.19/x
  3. Step 3: Cross multiply
    68,788.22x = 103,182.32 × 45,409.19
  4. Step 4: Simplify right side
    68,788.22x = 4,685,425,171.13
  5. Step 5: Solve for x
    x = 4,685,425,171.13/68,788.22
  6. Step 6: Final answer
    x = 68,113.78

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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.