Home / 66,506.42-91,778.82-38,212.04

Finding the Fourth Proportional to 66,506.42, 91,778.82 and 38,212.04

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Solution

The fourth proportional to 66,506.42, 91,778.82 and 38,212.04 is: 52,732.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,506.42 : 91,778.82 = 38,212.04 : x
  2. Step 2: Convert to fraction form
    66,506.42/91,778.82 = 38,212.04/x
  3. Step 3: Cross multiply
    66,506.42x = 91,778.82 × 38,212.04
  4. Step 4: Simplify right side
    66,506.42x = 3,507,055,940.99
  5. Step 5: Solve for x
    x = 3,507,055,940.99/66,506.42
  6. Step 6: Final answer
    x = 52,732.59

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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.