Home / 69,338.09-95,679.55-40,256.39

Finding the Fourth Proportional to 69,338.09, 95,679.55 and 40,256.39

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Solution

The fourth proportional to 69,338.09, 95,679.55 and 40,256.39 is: 55,549.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,338.09 : 95,679.55 = 40,256.39 : x
  2. Step 2: Convert to fraction form
    69,338.09/95,679.55 = 40,256.39/x
  3. Step 3: Cross multiply
    69,338.09x = 95,679.55 × 40,256.39
  4. Step 4: Simplify right side
    69,338.09x = 3,851,713,279.82
  5. Step 5: Solve for x
    x = 3,851,713,279.82/69,338.09
  6. Step 6: Final answer
    x = 55,549.75

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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.