Home / 71,175.32-98,221.94-38,910.08

Finding the Fourth Proportional to 71,175.32, 98,221.94 and 38,910.08

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Solution

The fourth proportional to 71,175.32, 98,221.94 and 38,910.08 is: 53,695.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,175.32 : 98,221.94 = 38,910.08 : x
  2. Step 2: Convert to fraction form
    71,175.32/98,221.94 = 38,910.08/x
  3. Step 3: Cross multiply
    71,175.32x = 98,221.94 × 38,910.08
  4. Step 4: Simplify right side
    71,175.32x = 3,821,822,857.50
  5. Step 5: Solve for x
    x = 3,821,822,857.50/71,175.32
  6. Step 6: Final answer
    x = 53,695.90

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1.5x scale

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.