Home / 51,212.41-76,765.83-19,613.86

Finding the Fourth Proportional to 51,212.41, 76,765.83 and 19,613.86

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Solution

The fourth proportional to 51,212.41, 76,765.83 and 19,613.86 is: 29,400.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,212.41 : 76,765.83 = 19,613.86 : x
  2. Step 2: Convert to fraction form
    51,212.41/76,765.83 = 19,613.86/x
  3. Step 3: Cross multiply
    51,212.41x = 76,765.83 × 19,613.86
  4. Step 4: Simplify right side
    51,212.41x = 1,505,674,242.40
  5. Step 5: Solve for x
    x = 1,505,674,242.40/51,212.41
  6. Step 6: Final answer
    x = 29,400.57

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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.