Home / 68,823.10-103,222.34-43,788.78

Finding the Fourth Proportional to 68,823.10, 103,222.34 and 43,788.78

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Solution

The fourth proportional to 68,823.10, 103,222.34 and 43,788.78 is: 65,675.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,823.10 : 103,222.34 = 43,788.78 : x
  2. Step 2: Convert to fraction form
    68,823.10/103,222.34 = 43,788.78/x
  3. Step 3: Cross multiply
    68,823.10x = 103,222.34 × 43,788.78
  4. Step 4: Simplify right side
    68,823.10x = 4,519,980,465.15
  5. Step 5: Solve for x
    x = 4,519,980,465.15/68,823.10
  6. Step 6: Final answer
    x = 65,675.34

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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.