Home / 51,435.45-77,133.60-18,149.31

Finding the Fourth Proportional to 51,435.45, 77,133.60 and 18,149.31

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Solution

The fourth proportional to 51,435.45, 77,133.60 and 18,149.31 is: 27,217.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,435.45 : 77,133.60 = 18,149.31 : x
  2. Step 2: Convert to fraction form
    51,435.45/77,133.60 = 18,149.31/x
  3. Step 3: Cross multiply
    51,435.45x = 77,133.60 × 18,149.31
  4. Step 4: Simplify right side
    51,435.45x = 1,399,921,617.82
  5. Step 5: Solve for x
    x = 1,399,921,617.82/51,435.45
  6. Step 6: Final answer
    x = 27,217.06

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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.