Home / 61,281.20-91,922.16-21,839.84

Finding the Fourth Proportional to 61,281.20, 91,922.16 and 21,839.84

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Solution

The fourth proportional to 61,281.20, 91,922.16 and 21,839.84 is: 32,759.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,281.20 : 91,922.16 = 21,839.84 : x
  2. Step 2: Convert to fraction form
    61,281.20/91,922.16 = 21,839.84/x
  3. Step 3: Cross multiply
    61,281.20x = 91,922.16 × 21,839.84
  4. Step 4: Simplify right side
    61,281.20x = 2,007,565,266.85
  5. Step 5: Solve for x
    x = 2,007,565,266.85/61,281.20
  6. Step 6: Final answer
    x = 32,759.89

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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.