Home / 54,340.20-81,518.40-19,276.92

Finding the Fourth Proportional to 54,340.20, 81,518.40 and 19,276.92

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Solution

The fourth proportional to 54,340.20, 81,518.40 and 19,276.92 is: 28,918.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,340.20 : 81,518.40 = 19,276.92 : x
  2. Step 2: Convert to fraction form
    54,340.20/81,518.40 = 19,276.92/x
  3. Step 3: Cross multiply
    54,340.20x = 81,518.40 × 19,276.92
  4. Step 4: Simplify right side
    54,340.20x = 1,571,423,675.33
  5. Step 5: Solve for x
    x = 1,571,423,675.33/54,340.20
  6. Step 6: Final answer
    x = 28,918.25

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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.