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Finding the Fourth Proportional to 66,955.78, 100,429.54 and 27,511.89

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Solution

The fourth proportional to 66,955.78, 100,429.54 and 27,511.89 is: 41,266.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,955.78 : 100,429.54 = 27,511.89 : x
  2. Step 2: Convert to fraction form
    66,955.78/100,429.54 = 27,511.89/x
  3. Step 3: Cross multiply
    66,955.78x = 100,429.54 × 27,511.89
  4. Step 4: Simplify right side
    66,955.78x = 2,763,006,011.84
  5. Step 5: Solve for x
    x = 2,763,006,011.84/66,955.78
  6. Step 6: Final answer
    x = 41,266.13

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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.