Home / 79,129.41-118,609.94-54,162.45

Finding the Fourth Proportional to 79,129.41, 118,609.94 and 54,162.45

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Solution

The fourth proportional to 79,129.41, 118,609.94 and 54,162.45 is: 81,186.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,129.41 : 118,609.94 = 54,162.45 : x
  2. Step 2: Convert to fraction form
    79,129.41/118,609.94 = 54,162.45/x
  3. Step 3: Cross multiply
    79,129.41x = 118,609.94 × 54,162.45
  4. Step 4: Simplify right side
    79,129.41x = 6,424,204,673.94
  5. Step 5: Solve for x
    x = 6,424,204,673.94/79,129.41
  6. Step 6: Final answer
    x = 81,186.06

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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.