Home / 77,063.50-106,149.79-54,362.58

Finding the Fourth Proportional to 77,063.50, 106,149.79 and 54,362.58

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Solution

The fourth proportional to 77,063.50, 106,149.79 and 54,362.58 is: 74,880.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,063.50 : 106,149.79 = 54,362.58 : x
  2. Step 2: Convert to fraction form
    77,063.50/106,149.79 = 54,362.58/x
  3. Step 3: Cross multiply
    77,063.50x = 106,149.79 × 54,362.58
  4. Step 4: Simplify right side
    77,063.50x = 5,770,576,120.75
  5. Step 5: Solve for x
    x = 5,770,576,120.75/77,063.50
  6. Step 6: Final answer
    x = 74,880.79

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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.