Home / 54,291.30-81,377.55-19,212.90

Finding the Fourth Proportional to 54,291.30, 81,377.55 and 19,212.90

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Solution

The fourth proportional to 54,291.30, 81,377.55 and 19,212.90 is: 28,798.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,291.30 : 81,377.55 = 19,212.90 : x
  2. Step 2: Convert to fraction form
    54,291.30/81,377.55 = 19,212.90/x
  3. Step 3: Cross multiply
    54,291.30x = 81,377.55 × 19,212.90
  4. Step 4: Simplify right side
    54,291.30x = 1,563,498,730.40
  5. Step 5: Solve for x
    x = 1,563,498,730.40/54,291.30
  6. Step 6: Final answer
    x = 28,798.33

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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.