Home / 68,188.08-94,077-39,873.72

Finding the Fourth Proportional to 68,188.08, 94,077 and 39,873.72

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Solution

The fourth proportional to 68,188.08, 94,077 and 39,873.72 is: 55,012.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,188.08 : 94,077 = 39,873.72 : x
  2. Step 2: Convert to fraction form
    68,188.08/94,077 = 39,873.72/x
  3. Step 3: Cross multiply
    68,188.08x = 94,077 × 39,873.72
  4. Step 4: Simplify right side
    68,188.08x = 3,751,199,956.44
  5. Step 5: Solve for x
    x = 3,751,199,956.44/68,188.08
  6. Step 6: Final answer
    x = 55,012.55

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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.