Home / 61,213.40-91,820.68-18,519.17

Finding the Fourth Proportional to 61,213.40, 91,820.68 and 18,519.17

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Solution

The fourth proportional to 61,213.40, 91,820.68 and 18,519.17 is: 27,778.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,213.40 : 91,820.68 = 18,519.17 : x
  2. Step 2: Convert to fraction form
    61,213.40/91,820.68 = 18,519.17/x
  3. Step 3: Cross multiply
    61,213.40x = 91,820.68 × 18,519.17
  4. Step 4: Simplify right side
    61,213.40x = 1,700,442,277.03
  5. Step 5: Solve for x
    x = 1,700,442,277.03/61,213.40
  6. Step 6: Final answer
    x = 27,778.92

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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.