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Finding the Fourth Proportional to 66,787.59, 100,218.28 and 37,222.09

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Solution

The fourth proportional to 66,787.59, 100,218.28 and 37,222.09 is: 55,853.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,787.59 : 100,218.28 = 37,222.09 : x
  2. Step 2: Convert to fraction form
    66,787.59/100,218.28 = 37,222.09/x
  3. Step 3: Cross multiply
    66,787.59x = 100,218.28 × 37,222.09
  4. Step 4: Simplify right side
    66,787.59x = 3,730,333,494.20
  5. Step 5: Solve for x
    x = 3,730,333,494.20/66,787.59
  6. Step 6: Final answer
    x = 55,853.69

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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.