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Finding the Fourth Proportional to 71,895.32, 107,843.25 and 21,975.22

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Solution

The fourth proportional to 71,895.32, 107,843.25 and 21,975.22 is: 32,962.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,895.32 : 107,843.25 = 21,975.22 : x
  2. Step 2: Convert to fraction form
    71,895.32/107,843.25 = 21,975.22/x
  3. Step 3: Cross multiply
    71,895.32x = 107,843.25 × 21,975.22
  4. Step 4: Simplify right side
    71,895.32x = 2,369,879,199.95
  5. Step 5: Solve for x
    x = 2,369,879,199.95/71,895.32
  6. Step 6: Final answer
    x = 32,962.91

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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.