Home / 66,021.68-91,110.38-35,807.16

Finding the Fourth Proportional to 66,021.68, 91,110.38 and 35,807.16

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Solution

The fourth proportional to 66,021.68, 91,110.38 and 35,807.16 is: 49,414.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,021.68 : 91,110.38 = 35,807.16 : x
  2. Step 2: Convert to fraction form
    66,021.68/91,110.38 = 35,807.16/x
  3. Step 3: Cross multiply
    66,021.68x = 91,110.38 × 35,807.16
  4. Step 4: Simplify right side
    66,021.68x = 3,262,403,954.32
  5. Step 5: Solve for x
    x = 3,262,403,954.32/66,021.68
  6. Step 6: Final answer
    x = 49,414.13

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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.