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Finding the Fourth Proportional to 66,154.91, 91,293.93 and 35,939.97

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Solution

The fourth proportional to 66,154.91, 91,293.93 and 35,939.97 is: 49,597.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,154.91 : 91,293.93 = 35,939.97 : x
  2. Step 2: Convert to fraction form
    66,154.91/91,293.93 = 35,939.97/x
  3. Step 3: Cross multiply
    66,154.91x = 91,293.93 × 35,939.97
  4. Step 4: Simplify right side
    66,154.91x = 3,281,101,105.38
  5. Step 5: Solve for x
    x = 3,281,101,105.38/66,154.91
  6. Step 6: Final answer
    x = 49,597.25

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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.