Home / 83,504.25-115,235.87-45,778.50

Finding the Fourth Proportional to 83,504.25, 115,235.87 and 45,778.50

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Solution

The fourth proportional to 83,504.25, 115,235.87 and 45,778.50 is: 63,174.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,504.25 : 115,235.87 = 45,778.50 : x
  2. Step 2: Convert to fraction form
    83,504.25/115,235.87 = 45,778.50/x
  3. Step 3: Cross multiply
    83,504.25x = 115,235.87 × 45,778.50
  4. Step 4: Simplify right side
    83,504.25x = 5,275,325,045.90
  5. Step 5: Solve for x
    x = 5,275,325,045.90/83,504.25
  6. Step 6: Final answer
    x = 63,174.33

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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.