Home / 53,692.38-80,570.25-20,440.44

Finding the Fourth Proportional to 53,692.38, 80,570.25 and 20,440.44

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Solution

The fourth proportional to 53,692.38, 80,570.25 and 20,440.44 is: 30,672.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,692.38 : 80,570.25 = 20,440.44 : x
  2. Step 2: Convert to fraction form
    53,692.38/80,570.25 = 20,440.44/x
  3. Step 3: Cross multiply
    53,692.38x = 80,570.25 × 20,440.44
  4. Step 4: Simplify right side
    53,692.38x = 1,646,891,360.91
  5. Step 5: Solve for x
    x = 1,646,891,360.91/53,692.38
  6. Step 6: Final answer
    x = 30,672.72

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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.