Home / 66,122.20-91,284.22-50,981.64

Finding the Fourth Proportional to 66,122.20, 91,284.22 and 50,981.64

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Solution

The fourth proportional to 66,122.20, 91,284.22 and 50,981.64 is: 70,382.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,122.20 : 91,284.22 = 50,981.64 : x
  2. Step 2: Convert to fraction form
    66,122.20/91,284.22 = 50,981.64/x
  3. Step 3: Cross multiply
    66,122.20x = 91,284.22 × 50,981.64
  4. Step 4: Simplify right side
    66,122.20x = 4,653,819,241.72
  5. Step 5: Solve for x
    x = 4,653,819,241.72/66,122.20
  6. Step 6: Final answer
    x = 70,382.10

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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.