Home / 61,965.20-92,950.68-20,412.56

Finding the Fourth Proportional to 61,965.20, 92,950.68 and 20,412.56

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Solution

The fourth proportional to 61,965.20, 92,950.68 and 20,412.56 is: 30,619.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,965.20 : 92,950.68 = 20,412.56 : x
  2. Step 2: Convert to fraction form
    61,965.20/92,950.68 = 20,412.56/x
  3. Step 3: Cross multiply
    61,965.20x = 92,950.68 × 20,412.56
  4. Step 4: Simplify right side
    61,965.20x = 1,897,361,332.54
  5. Step 5: Solve for x
    x = 1,897,361,332.54/61,965.20
  6. Step 6: Final answer
    x = 30,619.79

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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.