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Finding the Fourth Proportional to 66,169.08, 99,259.08 and 21,197

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Solution

The fourth proportional to 66,169.08, 99,259.08 and 21,197 is: 31,797.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,169.08 : 99,259.08 = 21,197 : x
  2. Step 2: Convert to fraction form
    66,169.08/99,259.08 = 21,197/x
  3. Step 3: Cross multiply
    66,169.08x = 99,259.08 × 21,197
  4. Step 4: Simplify right side
    66,169.08x = 2,103,994,718.76
  5. Step 5: Solve for x
    x = 2,103,994,718.76/66,169.08
  6. Step 6: Final answer
    x = 31,797.25

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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.