Home / 66,400.62-99,536.94-42,641.16

Finding the Fourth Proportional to 66,400.62, 99,536.94 and 42,641.16

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Solution

The fourth proportional to 66,400.62, 99,536.94 and 42,641.16 is: 63,920.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,400.62 : 99,536.94 = 42,641.16 : x
  2. Step 2: Convert to fraction form
    66,400.62/99,536.94 = 42,641.16/x
  3. Step 3: Cross multiply
    66,400.62x = 99,536.94 × 42,641.16
  4. Step 4: Simplify right side
    66,400.62x = 4,244,370,584.45
  5. Step 5: Solve for x
    x = 4,244,370,584.45/66,400.62
  6. Step 6: Final answer
    x = 63,920.65

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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.