Home / 56,205.75-77,418.41-39,179.55

Finding the Fourth Proportional to 56,205.75, 77,418.41 and 39,179.55

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Solution

The fourth proportional to 56,205.75, 77,418.41 and 39,179.55 is: 53,966.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,205.75 : 77,418.41 = 39,179.55 : x
  2. Step 2: Convert to fraction form
    56,205.75/77,418.41 = 39,179.55/x
  3. Step 3: Cross multiply
    56,205.75x = 77,418.41 × 39,179.55
  4. Step 4: Simplify right side
    56,205.75x = 3,033,218,126.22
  5. Step 5: Solve for x
    x = 3,033,218,126.22/56,205.75
  6. Step 6: Final answer
    x = 53,966.33

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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.