Home / 74,221.68-111,332.75-18,061.80

Finding the Fourth Proportional to 74,221.68, 111,332.75 and 18,061.80

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Solution

The fourth proportional to 74,221.68, 111,332.75 and 18,061.80 is: 27,092.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,221.68 : 111,332.75 = 18,061.80 : x
  2. Step 2: Convert to fraction form
    74,221.68/111,332.75 = 18,061.80/x
  3. Step 3: Cross multiply
    74,221.68x = 111,332.75 × 18,061.80
  4. Step 4: Simplify right side
    74,221.68x = 2,010,869,773.64
  5. Step 5: Solve for x
    x = 2,010,869,773.64/74,221.68
  6. Step 6: Final answer
    x = 27,092.75

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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.