Home / 67,790.32-101,578.46-55,078.08

Finding the Fourth Proportional to 67,790.32, 101,578.46 and 55,078.08

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Solution

The fourth proportional to 67,790.32, 101,578.46 and 55,078.08 is: 82,530.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,790.32 : 101,578.46 = 55,078.08 : x
  2. Step 2: Convert to fraction form
    67,790.32/101,578.46 = 55,078.08/x
  3. Step 3: Cross multiply
    67,790.32x = 101,578.46 × 55,078.08
  4. Step 4: Simplify right side
    67,790.32x = 5,594,745,889.85
  5. Step 5: Solve for x
    x = 5,594,745,889.85/67,790.32
  6. Step 6: Final answer
    x = 82,530.16

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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.