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Finding the Fourth Proportional to 73,993.58, 111,006.99 and 21,407.16

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Solution

The fourth proportional to 73,993.58, 111,006.99 and 21,407.16 is: 32,115.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,993.58 : 111,006.99 = 21,407.16 : x
  2. Step 2: Convert to fraction form
    73,993.58/111,006.99 = 21,407.16/x
  3. Step 3: Cross multiply
    73,993.58x = 111,006.99 × 21,407.16
  4. Step 4: Simplify right side
    73,993.58x = 2,376,344,396.05
  5. Step 5: Solve for x
    x = 2,376,344,396.05/73,993.58
  6. Step 6: Final answer
    x = 32,115.55

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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.