Home / 66,518.74-91,771.82-51,209.96

Finding the Fourth Proportional to 66,518.74, 91,771.82 and 51,209.96

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Solution

The fourth proportional to 66,518.74, 91,771.82 and 51,209.96 is: 70,651.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,518.74 : 91,771.82 = 51,209.96 : x
  2. Step 2: Convert to fraction form
    66,518.74/91,771.82 = 51,209.96/x
  3. Step 3: Cross multiply
    66,518.74x = 91,771.82 × 51,209.96
  4. Step 4: Simplify right side
    66,518.74x = 4,699,631,231.33
  5. Step 5: Solve for x
    x = 4,699,631,231.33/66,518.74
  6. Step 6: Final answer
    x = 70,651.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.