Home / 66,185.84-91,338.66-38,957.00

Finding the Fourth Proportional to 66,185.84, 91,338.66 and 38,957.00

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Solution

The fourth proportional to 66,185.84, 91,338.66 and 38,957.00 is: 53,761.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,185.84 : 91,338.66 = 38,957.00 : x
  2. Step 2: Convert to fraction form
    66,185.84/91,338.66 = 38,957.00/x
  3. Step 3: Cross multiply
    66,185.84x = 91,338.66 × 38,957.00
  4. Step 4: Simplify right side
    66,185.84x = 3,558,279,720.93
  5. Step 5: Solve for x
    x = 3,558,279,720.93/66,185.84
  6. Step 6: Final answer
    x = 53,761.95

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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.