Home / 49,692.64-74,542.08-20,109.92

Finding the Fourth Proportional to 49,692.64, 74,542.08 and 20,109.92

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Solution

The fourth proportional to 49,692.64, 74,542.08 and 20,109.92 is: 30,166.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,692.64 : 74,542.08 = 20,109.92 : x
  2. Step 2: Convert to fraction form
    49,692.64/74,542.08 = 20,109.92/x
  3. Step 3: Cross multiply
    49,692.64x = 74,542.08 × 20,109.92
  4. Step 4: Simplify right side
    49,692.64x = 1,499,035,265.43
  5. Step 5: Solve for x
    x = 1,499,035,265.43/49,692.64
  6. Step 6: Final answer
    x = 30,166.14

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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.