Home / 43,075.78-64,614.89-11,911.03

Finding the Fourth Proportional to 43,075.78, 64,614.89 and 11,911.03

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Solution

The fourth proportional to 43,075.78, 64,614.89 and 11,911.03 is: 17,866.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,075.78 : 64,614.89 = 11,911.03 : x
  2. Step 2: Convert to fraction form
    43,075.78/64,614.89 = 11,911.03/x
  3. Step 3: Cross multiply
    43,075.78x = 64,614.89 × 11,911.03
  4. Step 4: Simplify right side
    43,075.78x = 769,629,761.48
  5. Step 5: Solve for x
    x = 769,629,761.48/43,075.78
  6. Step 6: Final answer
    x = 17,866.88

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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.