Home / 51,395.40-77,163.05-28,921.96

Finding the Fourth Proportional to 51,395.40, 77,163.05 and 28,921.96

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Solution

The fourth proportional to 51,395.40, 77,163.05 and 28,921.96 is: 43,422.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,395.40 : 77,163.05 = 28,921.96 : x
  2. Step 2: Convert to fraction form
    51,395.40/77,163.05 = 28,921.96/x
  3. Step 3: Cross multiply
    51,395.40x = 77,163.05 × 28,921.96
  4. Step 4: Simplify right side
    51,395.40x = 2,231,706,573.27
  5. Step 5: Solve for x
    x = 2,231,706,573.27/51,395.40
  6. Step 6: Final answer
    x = 43,422.30

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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.