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Finding the Fourth Proportional to 60,160.54, 90,239.73 and 20,716.78

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Solution

The fourth proportional to 60,160.54, 90,239.73 and 20,716.78 is: 31,074.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,160.54 : 90,239.73 = 20,716.78 : x
  2. Step 2: Convert to fraction form
    60,160.54/90,239.73 = 20,716.78/x
  3. Step 3: Cross multiply
    60,160.54x = 90,239.73 × 20,716.78
  4. Step 4: Simplify right side
    60,160.54x = 1,869,476,633.67
  5. Step 5: Solve for x
    x = 1,869,476,633.67/60,160.54
  6. Step 6: Final answer
    x = 31,074.80

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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.