Home / 79,500.30-109,705.10-43,689.54

Finding the Fourth Proportional to 79,500.30, 109,705.10 and 43,689.54

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Solution

The fourth proportional to 79,500.30, 109,705.10 and 43,689.54 is: 60,288.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,500.30 : 109,705.10 = 43,689.54 : x
  2. Step 2: Convert to fraction form
    79,500.30/109,705.10 = 43,689.54/x
  3. Step 3: Cross multiply
    79,500.30x = 109,705.10 × 43,689.54
  4. Step 4: Simplify right side
    79,500.30x = 4,792,965,354.65
  5. Step 5: Solve for x
    x = 4,792,965,354.65/79,500.30
  6. Step 6: Final answer
    x = 60,288.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.