Home / 66,128.16-91,245.68-37,829.28

Finding the Fourth Proportional to 66,128.16, 91,245.68 and 37,829.28

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Solution

The fourth proportional to 66,128.16, 91,245.68 and 37,829.28 is: 52,198.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,128.16 : 91,245.68 = 37,829.28 : x
  2. Step 2: Convert to fraction form
    66,128.16/91,245.68 = 37,829.28/x
  3. Step 3: Cross multiply
    66,128.16x = 91,245.68 × 37,829.28
  4. Step 4: Simplify right side
    66,128.16x = 3,451,758,377.51
  5. Step 5: Solve for x
    x = 3,451,758,377.51/66,128.16
  6. Step 6: Final answer
    x = 52,198.01

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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.