Home / 66,117.20-91,277.32-50,976.64

Finding the Fourth Proportional to 66,117.20, 91,277.32 and 50,976.64

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Solution

The fourth proportional to 66,117.20, 91,277.32 and 50,976.64 is: 70,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,117.20 : 91,277.32 = 50,976.64 : x
  2. Step 2: Convert to fraction form
    66,117.20/91,277.32 = 50,976.64/x
  3. Step 3: Cross multiply
    66,117.20x = 91,277.32 × 50,976.64
  4. Step 4: Simplify right side
    66,117.20x = 4,653,011,081.80
  5. Step 5: Solve for x
    x = 4,653,011,081.80/66,117.20
  6. Step 6: Final answer
    x = 70,375.20

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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.