Home / 66,146.10-99,185.13-19,392.90

Finding the Fourth Proportional to 66,146.10, 99,185.13 and 19,392.90

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Solution

The fourth proportional to 66,146.10, 99,185.13 and 19,392.90 is: 29,079.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,146.10 : 99,185.13 = 19,392.90 : x
  2. Step 2: Convert to fraction form
    66,146.10/99,185.13 = 19,392.90/x
  3. Step 3: Cross multiply
    66,146.10x = 99,185.13 × 19,392.90
  4. Step 4: Simplify right side
    66,146.10x = 1,923,487,307.58
  5. Step 5: Solve for x
    x = 1,923,487,307.58/66,146.10
  6. Step 6: Final answer
    x = 29,079.38

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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.