Home / 66,120.11-91,256.06-37,441.25

Finding the Fourth Proportional to 66,120.11, 91,256.06 and 37,441.25

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Solution

The fourth proportional to 66,120.11, 91,256.06 and 37,441.25 is: 51,674.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,120.11 : 91,256.06 = 37,441.25 : x
  2. Step 2: Convert to fraction form
    66,120.11/91,256.06 = 37,441.25/x
  3. Step 3: Cross multiply
    66,120.11x = 91,256.06 × 37,441.25
  4. Step 4: Simplify right side
    66,120.11x = 3,416,740,956.48
  5. Step 5: Solve for x
    x = 3,416,740,956.48/66,120.11
  6. Step 6: Final answer
    x = 51,674.76

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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.