Home / 66,194.79-91,362.09-39,332.13

Finding the Fourth Proportional to 66,194.79, 91,362.09 and 39,332.13

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Solution

The fourth proportional to 66,194.79, 91,362.09 and 39,332.13 is: 54,286.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,194.79 : 91,362.09 = 39,332.13 : x
  2. Step 2: Convert to fraction form
    66,194.79/91,362.09 = 39,332.13/x
  3. Step 3: Cross multiply
    66,194.79x = 91,362.09 × 39,332.13
  4. Step 4: Simplify right side
    66,194.79x = 3,593,465,600.95
  5. Step 5: Solve for x
    x = 3,593,465,600.95/66,194.79
  6. Step 6: Final answer
    x = 54,286.23

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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.