Home / 66,164.09-91,296.17-39,305.91

Finding the Fourth Proportional to 66,164.09, 91,296.17 and 39,305.91

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Solution

The fourth proportional to 66,164.09, 91,296.17 and 39,305.91 is: 54,236.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,164.09 : 91,296.17 = 39,305.91 : x
  2. Step 2: Convert to fraction form
    66,164.09/91,296.17 = 39,305.91/x
  3. Step 3: Cross multiply
    66,164.09x = 91,296.17 × 39,305.91
  4. Step 4: Simplify right side
    66,164.09x = 3,588,478,844.84
  5. Step 5: Solve for x
    x = 3,588,478,844.84/66,164.09
  6. Step 6: Final answer
    x = 54,236.05

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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.