Home / 54,520.20-81,792.45-21,237.30

Finding the Fourth Proportional to 54,520.20, 81,792.45 and 21,237.30

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Solution

The fourth proportional to 54,520.20, 81,792.45 and 21,237.30 is: 31,860.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,520.20 : 81,792.45 = 21,237.30 : x
  2. Step 2: Convert to fraction form
    54,520.20/81,792.45 = 21,237.30/x
  3. Step 3: Cross multiply
    54,520.20x = 81,792.45 × 21,237.30
  4. Step 4: Simplify right side
    54,520.20x = 1,737,050,798.39
  5. Step 5: Solve for x
    x = 1,737,050,798.39/54,520.20
  6. Step 6: Final answer
    x = 31,860.68

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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.