Home / 68,080.97-93,945.15-39,394.91

Finding the Fourth Proportional to 68,080.97, 93,945.15 and 39,394.91

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Solution

The fourth proportional to 68,080.97, 93,945.15 and 39,394.91 is: 54,361.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,080.97 : 93,945.15 = 39,394.91 : x
  2. Step 2: Convert to fraction form
    68,080.97/93,945.15 = 39,394.91/x
  3. Step 3: Cross multiply
    68,080.97x = 93,945.15 × 39,394.91
  4. Step 4: Simplify right side
    68,080.97x = 3,700,960,729.19
  5. Step 5: Solve for x
    x = 3,700,960,729.19/68,080.97
  6. Step 6: Final answer
    x = 54,361.16

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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.