Home / 71,042.22-98,037.78-39,211.11

Finding the Fourth Proportional to 71,042.22, 98,037.78 and 39,211.11

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Solution

The fourth proportional to 71,042.22, 98,037.78 and 39,211.11 is: 54,111.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,042.22 : 98,037.78 = 39,211.11 : x
  2. Step 2: Convert to fraction form
    71,042.22/98,037.78 = 39,211.11/x
  3. Step 3: Cross multiply
    71,042.22x = 98,037.78 × 39,211.11
  4. Step 4: Simplify right side
    71,042.22x = 3,844,170,175.74
  5. Step 5: Solve for x
    x = 3,844,170,175.74/71,042.22
  6. Step 6: Final answer
    x = 54,111.06

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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.