Home / 77,512.64-106,893.96-50,678.15

Finding the Fourth Proportional to 77,512.64, 106,893.96 and 50,678.15

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Solution

The fourth proportional to 77,512.64, 106,893.96 and 50,678.15 is: 69,887.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,512.64 : 106,893.96 = 50,678.15 : x
  2. Step 2: Convert to fraction form
    77,512.64/106,893.96 = 50,678.15/x
  3. Step 3: Cross multiply
    77,512.64x = 106,893.96 × 50,678.15
  4. Step 4: Simplify right side
    77,512.64x = 5,417,188,138.97
  5. Step 5: Solve for x
    x = 5,417,188,138.97/77,512.64
  6. Step 6: Final answer
    x = 69,887.80

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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.