Home / 36,134.58-54,188.40-12,435.50

Finding the Fourth Proportional to 36,134.58, 54,188.40 and 12,435.50

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Solution

The fourth proportional to 36,134.58, 54,188.40 and 12,435.50 is: 18,648.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,134.58 : 54,188.40 = 12,435.50 : x
  2. Step 2: Convert to fraction form
    36,134.58/54,188.40 = 12,435.50/x
  3. Step 3: Cross multiply
    36,134.58x = 54,188.40 × 12,435.50
  4. Step 4: Simplify right side
    36,134.58x = 673,859,983.67
  5. Step 5: Solve for x
    x = 673,859,983.67/36,134.58
  6. Step 6: Final answer
    x = 18,648.62

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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.