Home / 54,468.68-81,671.58-21,149.80

Finding the Fourth Proportional to 54,468.68, 81,671.58 and 21,149.80

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Solution

The fourth proportional to 54,468.68, 81,671.58 and 21,149.80 is: 31,712.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,468.68 : 81,671.58 = 21,149.80 : x
  2. Step 2: Convert to fraction form
    54,468.68/81,671.58 = 21,149.80/x
  3. Step 3: Cross multiply
    54,468.68x = 81,671.58 × 21,149.80
  4. Step 4: Simplify right side
    54,468.68x = 1,727,337,582.68
  5. Step 5: Solve for x
    x = 1,727,337,582.68/54,468.68
  6. Step 6: Final answer
    x = 31,712.49

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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.