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Finding the Fourth Proportional to 77,003.25, 106,264.49 and 43,469.25

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Solution

The fourth proportional to 77,003.25, 106,264.49 and 43,469.25 is: 59,987.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,003.25 : 106,264.49 = 43,469.25 : x
  2. Step 2: Convert to fraction form
    77,003.25/106,264.49 = 43,469.25/x
  3. Step 3: Cross multiply
    77,003.25x = 106,264.49 × 43,469.25
  4. Step 4: Simplify right side
    77,003.25x = 4,619,237,464.59
  5. Step 5: Solve for x
    x = 4,619,237,464.59/77,003.25
  6. Step 6: Final answer
    x = 59,987.57

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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.