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Finding the Fourth Proportional to 60,805.62, 91,208.43 and 18,685.62

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Solution

The fourth proportional to 60,805.62, 91,208.43 and 18,685.62 is: 28,028.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,805.62 : 91,208.43 = 18,685.62 : x
  2. Step 2: Convert to fraction form
    60,805.62/91,208.43 = 18,685.62/x
  3. Step 3: Cross multiply
    60,805.62x = 91,208.43 × 18,685.62
  4. Step 4: Simplify right side
    60,805.62x = 1,704,286,063.78
  5. Step 5: Solve for x
    x = 1,704,286,063.78/60,805.62
  6. Step 6: Final answer
    x = 28,028.43

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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.