Home / 51,936.40-77,789.40-40,211.60

Finding the Fourth Proportional to 51,936.40, 77,789.40 and 40,211.60

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Solution

The fourth proportional to 51,936.40, 77,789.40 and 40,211.60 is: 60,228.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,936.40 : 77,789.40 = 40,211.60 : x
  2. Step 2: Convert to fraction form
    51,936.40/77,789.40 = 40,211.60/x
  3. Step 3: Cross multiply
    51,936.40x = 77,789.40 × 40,211.60
  4. Step 4: Simplify right side
    51,936.40x = 3,128,036,237.04
  5. Step 5: Solve for x
    x = 3,128,036,237.04/51,936.40
  6. Step 6: Final answer
    x = 60,228.21

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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.