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Finding the Fourth Proportional to 100,045.55, 150,012.91 and 40,922.73

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Solution

The fourth proportional to 100,045.55, 150,012.91 and 40,922.73 is: 61,361.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,045.55 : 150,012.91 = 40,922.73 : x
  2. Step 2: Convert to fraction form
    100,045.55/150,012.91 = 40,922.73/x
  3. Step 3: Cross multiply
    100,045.55x = 150,012.91 × 40,922.73
  4. Step 4: Simplify right side
    100,045.55x = 6,138,937,812.44
  5. Step 5: Solve for x
    x = 6,138,937,812.44/100,045.55
  6. Step 6: Final answer
    x = 61,361.43

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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.