Home / 45,928.82-68,893.60-12,650.72

Finding the Fourth Proportional to 45,928.82, 68,893.60 and 12,650.72

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Solution

The fourth proportional to 45,928.82, 68,893.60 and 12,650.72 is: 18,976.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,928.82 : 68,893.60 = 12,650.72 : x
  2. Step 2: Convert to fraction form
    45,928.82/68,893.60 = 12,650.72/x
  3. Step 3: Cross multiply
    45,928.82x = 68,893.60 × 12,650.72
  4. Step 4: Simplify right side
    45,928.82x = 871,553,643.39
  5. Step 5: Solve for x
    x = 871,553,643.39/45,928.82
  6. Step 6: Final answer
    x = 18,976.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.