Home / 66,377.08-91,599.30-36,162.78

Finding the Fourth Proportional to 66,377.08, 91,599.30 and 36,162.78

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Solution

The fourth proportional to 66,377.08, 91,599.30 and 36,162.78 is: 49,904.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,377.08 : 91,599.30 = 36,162.78 : x
  2. Step 2: Convert to fraction form
    66,377.08/91,599.30 = 36,162.78/x
  3. Step 3: Cross multiply
    66,377.08x = 91,599.30 × 36,162.78
  4. Step 4: Simplify right side
    66,377.08x = 3,312,485,334.05
  5. Step 5: Solve for x
    x = 3,312,485,334.05/66,377.08
  6. Step 6: Final answer
    x = 49,904.05

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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.