Home / 45,926.08-68,890.82-12,648.72

Finding the Fourth Proportional to 45,926.08, 68,890.82 and 12,648.72

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Solution

The fourth proportional to 45,926.08, 68,890.82 and 12,648.72 is: 18,973.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,926.08 : 68,890.82 = 12,648.72 : x
  2. Step 2: Convert to fraction form
    45,926.08/68,890.82 = 12,648.72/x
  3. Step 3: Cross multiply
    45,926.08x = 68,890.82 × 12,648.72
  4. Step 4: Simplify right side
    45,926.08x = 871,380,692.75
  5. Step 5: Solve for x
    x = 871,380,692.75/45,926.08
  6. Step 6: Final answer
    x = 18,973.55

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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.