Home / 66,629.62-99,972.12-29,170.40

Finding the Fourth Proportional to 66,629.62, 99,972.12 and 29,170.40

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Solution

The fourth proportional to 66,629.62, 99,972.12 and 29,170.40 is: 43,767.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,629.62 : 99,972.12 = 29,170.40 : x
  2. Step 2: Convert to fraction form
    66,629.62/99,972.12 = 29,170.40/x
  3. Step 3: Cross multiply
    66,629.62x = 99,972.12 × 29,170.40
  4. Step 4: Simplify right side
    66,629.62x = 2,916,226,729.25
  5. Step 5: Solve for x
    x = 2,916,226,729.25/66,629.62
  6. Step 6: Final answer
    x = 43,767.73

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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.