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Finding the Fourth Proportional to 60,361.58, 90,511.99 and 20,908.10

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Solution

The fourth proportional to 60,361.58, 90,511.99 and 20,908.10 is: 31,351.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,361.58 : 90,511.99 = 20,908.10 : x
  2. Step 2: Convert to fraction form
    60,361.58/90,511.99 = 20,908.10/x
  3. Step 3: Cross multiply
    60,361.58x = 90,511.99 × 20,908.10
  4. Step 4: Simplify right side
    60,361.58x = 1,892,433,738.12
  5. Step 5: Solve for x
    x = 1,892,433,738.12/60,361.58
  6. Step 6: Final answer
    x = 31,351.63

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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.