Home / 66,256.27-91,403.48-39,383.51

Finding the Fourth Proportional to 66,256.27, 91,403.48 and 39,383.51

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Solution

The fourth proportional to 66,256.27, 91,403.48 and 39,383.51 is: 54,331.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,256.27 : 91,403.48 = 39,383.51 : x
  2. Step 2: Convert to fraction form
    66,256.27/91,403.48 = 39,383.51/x
  3. Step 3: Cross multiply
    66,256.27x = 91,403.48 × 39,383.51
  4. Step 4: Simplify right side
    66,256.27x = 3,599,789,510.06
  5. Step 5: Solve for x
    x = 3,599,789,510.06/66,256.27
  6. Step 6: Final answer
    x = 54,331.31

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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.