Home / 66,659.68-91,756.32-60,361.12

Finding the Fourth Proportional to 66,659.68, 91,756.32 and 60,361.12

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Solution

The fourth proportional to 66,659.68, 91,756.32 and 60,361.12 is: 83,086.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,659.68 : 91,756.32 = 60,361.12 : x
  2. Step 2: Convert to fraction form
    66,659.68/91,756.32 = 60,361.12/x
  3. Step 3: Cross multiply
    66,659.68x = 91,756.32 × 60,361.12
  4. Step 4: Simplify right side
    66,659.68x = 5,538,514,242.28
  5. Step 5: Solve for x
    x = 5,538,514,242.28/66,659.68
  6. Step 6: Final answer
    x = 83,086.42

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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.