Home / 66,161.41-91,302.35-38,953.31

Finding the Fourth Proportional to 66,161.41, 91,302.35 and 38,953.31

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Solution

The fourth proportional to 66,161.41, 91,302.35 and 38,953.31 is: 53,755.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,161.41 : 91,302.35 = 38,953.31 : x
  2. Step 2: Convert to fraction form
    66,161.41/91,302.35 = 38,953.31/x
  3. Step 3: Cross multiply
    66,161.41x = 91,302.35 × 38,953.31
  4. Step 4: Simplify right side
    66,161.41x = 3,556,528,743.28
  5. Step 5: Solve for x
    x = 3,556,528,743.28/66,161.41
  6. Step 6: Final answer
    x = 53,755.33

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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.