Home / 54,520.95-81,781.16-14,539.85

Finding the Fourth Proportional to 54,520.95, 81,781.16 and 14,539.85

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Solution

The fourth proportional to 54,520.95, 81,781.16 and 14,539.85 is: 21,809.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,520.95 : 81,781.16 = 14,539.85 : x
  2. Step 2: Convert to fraction form
    54,520.95/81,781.16 = 14,539.85/x
  3. Step 3: Cross multiply
    54,520.95x = 81,781.16 × 14,539.85
  4. Step 4: Simplify right side
    54,520.95x = 1,189,085,317.62
  5. Step 5: Solve for x
    x = 1,189,085,317.62/54,520.95
  6. Step 6: Final answer
    x = 21,809.70

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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.