Home / 54,757.20-82,135.80-19,692.30

Finding the Fourth Proportional to 54,757.20, 82,135.80 and 19,692.30

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Solution

The fourth proportional to 54,757.20, 82,135.80 and 19,692.30 is: 29,538.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,757.20 : 82,135.80 = 19,692.30 : x
  2. Step 2: Convert to fraction form
    54,757.20/82,135.80 = 19,692.30/x
  3. Step 3: Cross multiply
    54,757.20x = 82,135.80 × 19,692.30
  4. Step 4: Simplify right side
    54,757.20x = 1,617,442,814.34
  5. Step 5: Solve for x
    x = 1,617,442,814.34/54,757.20
  6. Step 6: Final answer
    x = 29,538.45

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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.