Home / 66,200.85-91,348.16-39,333.56

Finding the Fourth Proportional to 66,200.85, 91,348.16 and 39,333.56

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Solution

The fourth proportional to 66,200.85, 91,348.16 and 39,333.56 is: 54,274.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,200.85 : 91,348.16 = 39,333.56 : x
  2. Step 2: Convert to fraction form
    66,200.85/91,348.16 = 39,333.56/x
  3. Step 3: Cross multiply
    66,200.85x = 91,348.16 × 39,333.56
  4. Step 4: Simplify right side
    66,200.85x = 3,593,047,678.84
  5. Step 5: Solve for x
    x = 3,593,047,678.84/66,200.85
  6. Step 6: Final answer
    x = 54,274.95

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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.