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Finding the Fourth Proportional to 67,350.91, 101,022.71 and 20,603.79

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Solution

The fourth proportional to 67,350.91, 101,022.71 and 20,603.79 is: 30,904.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,350.91 : 101,022.71 = 20,603.79 : x
  2. Step 2: Convert to fraction form
    67,350.91/101,022.71 = 20,603.79/x
  3. Step 3: Cross multiply
    67,350.91x = 101,022.71 × 20,603.79
  4. Step 4: Simplify right side
    67,350.91x = 2,081,450,702.07
  5. Step 5: Solve for x
    x = 2,081,450,702.07/67,350.91
  6. Step 6: Final answer
    x = 30,904.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.