Home / 51,439.45-77,139.60-18,153.31

Finding the Fourth Proportional to 51,439.45, 77,139.60 and 18,153.31

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Solution

The fourth proportional to 51,439.45, 77,139.60 and 18,153.31 is: 27,223.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,439.45 : 77,139.60 = 18,153.31 : x
  2. Step 2: Convert to fraction form
    51,439.45/77,139.60 = 18,153.31/x
  3. Step 3: Cross multiply
    51,439.45x = 77,139.60 × 18,153.31
  4. Step 4: Simplify right side
    51,439.45x = 1,400,339,072.08
  5. Step 5: Solve for x
    x = 1,400,339,072.08/51,439.45
  6. Step 6: Final answer
    x = 27,223.06

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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.