Home / 66,535.20-91,818.81-36,321.20

Finding the Fourth Proportional to 66,535.20, 91,818.81 and 36,321.20

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Solution

The fourth proportional to 66,535.20, 91,818.81 and 36,321.20 is: 50,123.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,535.20 : 91,818.81 = 36,321.20 : x
  2. Step 2: Convert to fraction form
    66,535.20/91,818.81 = 36,321.20/x
  3. Step 3: Cross multiply
    66,535.20x = 91,818.81 × 36,321.20
  4. Step 4: Simplify right side
    66,535.20x = 3,334,968,902.68
  5. Step 5: Solve for x
    x = 3,334,968,902.68/66,535.20
  6. Step 6: Final answer
    x = 50,123.38

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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.