Home / 71,175.06-98,216.70-39,339.60

Finding the Fourth Proportional to 71,175.06, 98,216.70 and 39,339.60

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Solution

The fourth proportional to 71,175.06, 98,216.70 and 39,339.60 is: 54,285.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,175.06 : 98,216.70 = 39,339.60 : x
  2. Step 2: Convert to fraction form
    71,175.06/98,216.70 = 39,339.60/x
  3. Step 3: Cross multiply
    71,175.06x = 98,216.70 × 39,339.60
  4. Step 4: Simplify right side
    71,175.06x = 3,863,805,691.32
  5. Step 5: Solve for x
    x = 3,863,805,691.32/71,175.06
  6. Step 6: Final answer
    x = 54,285.95

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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.