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Finding the Fourth Proportional to 76,889.37, 106,107.35 and 43,355.37

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Solution

The fourth proportional to 76,889.37, 106,107.35 and 43,355.37 is: 59,830.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,889.37 : 106,107.35 = 43,355.37 : x
  2. Step 2: Convert to fraction form
    76,889.37/106,107.35 = 43,355.37/x
  3. Step 3: Cross multiply
    76,889.37x = 106,107.35 × 43,355.37
  4. Step 4: Simplify right side
    76,889.37x = 4,600,323,202.19
  5. Step 5: Solve for x
    x = 4,600,323,202.19/76,889.37
  6. Step 6: Final answer
    x = 59,830.42

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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.