Home / 54,533.13-81,766.20-21,214.37

Finding the Fourth Proportional to 54,533.13, 81,766.20 and 21,214.37

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Solution

The fourth proportional to 54,533.13, 81,766.20 and 21,214.37 is: 31,808.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,533.13 : 81,766.20 = 21,214.37 : x
  2. Step 2: Convert to fraction form
    54,533.13/81,766.20 = 21,214.37/x
  3. Step 3: Cross multiply
    54,533.13x = 81,766.20 × 21,214.37
  4. Step 4: Simplify right side
    54,533.13x = 1,734,618,011.46
  5. Step 5: Solve for x
    x = 1,734,618,011.46/54,533.13
  6. Step 6: Final answer
    x = 31,808.52

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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.