Home / 66,104.42-91,220.39-38,517.48

Finding the Fourth Proportional to 66,104.42, 91,220.39 and 38,517.48

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Solution

The fourth proportional to 66,104.42, 91,220.39 and 38,517.48 is: 53,151.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,104.42 : 91,220.39 = 38,517.48 : x
  2. Step 2: Convert to fraction form
    66,104.42/91,220.39 = 38,517.48/x
  3. Step 3: Cross multiply
    66,104.42x = 91,220.39 × 38,517.48
  4. Step 4: Simplify right side
    66,104.42x = 3,513,579,354.83
  5. Step 5: Solve for x
    x = 3,513,579,354.83/66,104.42
  6. Step 6: Final answer
    x = 53,151.96

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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.