Home / 51,936.48-77,860.80-20,793.60

Finding the Fourth Proportional to 51,936.48, 77,860.80 and 20,793.60

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Solution

The fourth proportional to 51,936.48, 77,860.80 and 20,793.60 is: 31,172.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,936.48 : 77,860.80 = 20,793.60 : x
  2. Step 2: Convert to fraction form
    51,936.48/77,860.80 = 20,793.60/x
  3. Step 3: Cross multiply
    51,936.48x = 77,860.80 × 20,793.60
  4. Step 4: Simplify right side
    51,936.48x = 1,619,006,330.88
  5. Step 5: Solve for x
    x = 1,619,006,330.88/51,936.48
  6. Step 6: Final answer
    x = 31,172.82

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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.