Home / 66,217.80-99,325.82-31,132.64

Finding the Fourth Proportional to 66,217.80, 99,325.82 and 31,132.64

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Solution

The fourth proportional to 66,217.80, 99,325.82 and 31,132.64 is: 46,698.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,217.80 : 99,325.82 = 31,132.64 : x
  2. Step 2: Convert to fraction form
    66,217.80/99,325.82 = 31,132.64/x
  3. Step 3: Cross multiply
    66,217.80x = 99,325.82 × 31,132.64
  4. Step 4: Simplify right side
    66,217.80x = 3,092,274,996.76
  5. Step 5: Solve for x
    x = 3,092,274,996.76/66,217.80
  6. Step 6: Final answer
    x = 46,698.55

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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.