Home / 51,261.20-76,891.80-40,893.20

Finding the Fourth Proportional to 51,261.20, 76,891.80 and 40,893.20

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Solution

The fourth proportional to 51,261.20, 76,891.80 and 40,893.20 is: 61,339.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,261.20 : 76,891.80 = 40,893.20 : x
  2. Step 2: Convert to fraction form
    51,261.20/76,891.80 = 40,893.20/x
  3. Step 3: Cross multiply
    51,261.20x = 76,891.80 × 40,893.20
  4. Step 4: Simplify right side
    51,261.20x = 3,144,351,755.76
  5. Step 5: Solve for x
    x = 3,144,351,755.76/51,261.20
  6. Step 6: Final answer
    x = 61,339.80

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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.