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Finding the Fourth Proportional to 66,144.70, 99,185.75 and 25,637.19

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Solution

The fourth proportional to 66,144.70, 99,185.75 and 25,637.19 is: 38,443.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,144.70 : 99,185.75 = 25,637.19 : x
  2. Step 2: Convert to fraction form
    66,144.70/99,185.75 = 25,637.19/x
  3. Step 3: Cross multiply
    66,144.70x = 99,185.75 × 25,637.19
  4. Step 4: Simplify right side
    66,144.70x = 2,542,843,918.04
  5. Step 5: Solve for x
    x = 2,542,843,918.04/66,144.70
  6. Step 6: Final answer
    x = 38,443.65

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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.