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Finding the Fourth Proportional to 77,223.45, 115,646.53 and 47,600.53

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Solution

The fourth proportional to 77,223.45, 115,646.53 and 47,600.53 is: 71,284.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,223.45 : 115,646.53 = 47,600.53 : x
  2. Step 2: Convert to fraction form
    77,223.45/115,646.53 = 47,600.53/x
  3. Step 3: Cross multiply
    77,223.45x = 115,646.53 × 47,600.53
  4. Step 4: Simplify right side
    77,223.45x = 5,504,836,120.66
  5. Step 5: Solve for x
    x = 5,504,836,120.66/77,223.45
  6. Step 6: Final answer
    x = 71,284.51

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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.