Home / 66,284.16-91,471.14-36,069.78

Finding the Fourth Proportional to 66,284.16, 91,471.14 and 36,069.78

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Solution

The fourth proportional to 66,284.16, 91,471.14 and 36,069.78 is: 49,775.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,284.16 : 91,471.14 = 36,069.78 : x
  2. Step 2: Convert to fraction form
    66,284.16/91,471.14 = 36,069.78/x
  3. Step 3: Cross multiply
    66,284.16x = 91,471.14 × 36,069.78
  4. Step 4: Simplify right side
    66,284.16x = 3,299,343,896.15
  5. Step 5: Solve for x
    x = 3,299,343,896.15/66,284.16
  6. Step 6: Final answer
    x = 49,775.75

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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.