Home / 66,668.58-91,929.33-42,786.18

Finding the Fourth Proportional to 66,668.58, 91,929.33 and 42,786.18

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Solution

The fourth proportional to 66,668.58, 91,929.33 and 42,786.18 is: 58,997.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,668.58 : 91,929.33 = 42,786.18 : x
  2. Step 2: Convert to fraction form
    66,668.58/91,929.33 = 42,786.18/x
  3. Step 3: Cross multiply
    66,668.58x = 91,929.33 × 42,786.18
  4. Step 4: Simplify right side
    66,668.58x = 3,933,304,860.66
  5. Step 5: Solve for x
    x = 3,933,304,860.66/66,668.58
  6. Step 6: Final answer
    x = 58,997.88

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1.5x scale

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.