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Finding the Fourth Proportional to 66,653.58, 100,005.62 and 40,018.17

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Solution

The fourth proportional to 66,653.58, 100,005.62 and 40,018.17 is: 60,042.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,653.58 : 100,005.62 = 40,018.17 : x
  2. Step 2: Convert to fraction form
    66,653.58/100,005.62 = 40,018.17/x
  3. Step 3: Cross multiply
    66,653.58x = 100,005.62 × 40,018.17
  4. Step 4: Simplify right side
    66,653.58x = 4,002,042,002.16
  5. Step 5: Solve for x
    x = 4,002,042,002.16/66,653.58
  6. Step 6: Final answer
    x = 60,042.42

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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.