Home / 51,220-76,860.24-21,635.92

Finding the Fourth Proportional to 51,220, 76,860.24 and 21,635.92

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Solution

The fourth proportional to 51,220, 76,860.24 and 21,635.92 is: 32,466.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,220 : 76,860.24 = 21,635.92 : x
  2. Step 2: Convert to fraction form
    51,220/76,860.24 = 21,635.92/x
  3. Step 3: Cross multiply
    51,220x = 76,860.24 × 21,635.92
  4. Step 4: Simplify right side
    51,220x = 1,662,942,003.82
  5. Step 5: Solve for x
    x = 1,662,942,003.82/51,220
  6. Step 6: Final answer
    x = 32,466.65

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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.