Home / 71,907.83-99,236.19-40,076.96

Finding the Fourth Proportional to 71,907.83, 99,236.19 and 40,076.96

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Solution

The fourth proportional to 71,907.83, 99,236.19 and 40,076.96 is: 55,308.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,907.83 : 99,236.19 = 40,076.96 : x
  2. Step 2: Convert to fraction form
    71,907.83/99,236.19 = 40,076.96/x
  3. Step 3: Cross multiply
    71,907.83x = 99,236.19 × 40,076.96
  4. Step 4: Simplify right side
    71,907.83x = 3,977,084,471.29
  5. Step 5: Solve for x
    x = 3,977,084,471.29/71,907.83
  6. Step 6: Final answer
    x = 55,308.09

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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.