Home / 66,217.80-90,158.04-66,007.62

Finding the Fourth Proportional to 66,217.80, 90,158.04 and 66,007.62

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Solution

The fourth proportional to 66,217.80, 90,158.04 and 66,007.62 is: 89,871.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,217.80 : 90,158.04 = 66,007.62 : x
  2. Step 2: Convert to fraction form
    66,217.80/90,158.04 = 66,007.62/x
  3. Step 3: Cross multiply
    66,217.80x = 90,158.04 × 66,007.62
  4. Step 4: Simplify right side
    66,217.80x = 5,951,117,644.26
  5. Step 5: Solve for x
    x = 5,951,117,644.26/66,217.80
  6. Step 6: Final answer
    x = 89,871.87

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.