Home / 43,072.53-64,610.01-11,907.78

Finding the Fourth Proportional to 43,072.53, 64,610.01 and 11,907.78

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Solution

The fourth proportional to 43,072.53, 64,610.01 and 11,907.78 is: 17,862.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,072.53 : 64,610.01 = 11,907.78 : x
  2. Step 2: Convert to fraction form
    43,072.53/64,610.01 = 11,907.78/x
  3. Step 3: Cross multiply
    43,072.53x = 64,610.01 × 11,907.78
  4. Step 4: Simplify right side
    43,072.53x = 769,361,784.88
  5. Step 5: Solve for x
    x = 769,361,784.88/43,072.53
  6. Step 6: Final answer
    x = 17,862.01

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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.