Home / 54,542.20-81,813.30-31,214.20

Finding the Fourth Proportional to 54,542.20, 81,813.30 and 31,214.20

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Solution

The fourth proportional to 54,542.20, 81,813.30 and 31,214.20 is: 46,821.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,542.20 : 81,813.30 = 31,214.20 : x
  2. Step 2: Convert to fraction form
    54,542.20/81,813.30 = 31,214.20/x
  3. Step 3: Cross multiply
    54,542.20x = 81,813.30 × 31,214.20
  4. Step 4: Simplify right side
    54,542.20x = 2,553,736,708.86
  5. Step 5: Solve for x
    x = 2,553,736,708.86/54,542.20
  6. Step 6: Final answer
    x = 46,821.30

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1.5x scale

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.