Home / 66,209.56-91,364.82-39,354.52

Finding the Fourth Proportional to 66,209.56, 91,364.82 and 39,354.52

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Solution

The fourth proportional to 66,209.56, 91,364.82 and 39,354.52 is: 54,306.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,209.56 : 91,364.82 = 39,354.52 : x
  2. Step 2: Convert to fraction form
    66,209.56/91,364.82 = 39,354.52/x
  3. Step 3: Cross multiply
    66,209.56x = 91,364.82 × 39,354.52
  4. Step 4: Simplify right side
    66,209.56x = 3,595,618,635.99
  5. Step 5: Solve for x
    x = 3,595,618,635.99/66,209.56
  6. Step 6: Final answer
    x = 54,306.64

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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.