Home / 79,138.53-118,719.48-22,971.36

Finding the Fourth Proportional to 79,138.53, 118,719.48 and 22,971.36

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Solution

The fourth proportional to 79,138.53, 118,719.48 and 22,971.36 is: 34,460.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,138.53 : 118,719.48 = 22,971.36 : x
  2. Step 2: Convert to fraction form
    79,138.53/118,719.48 = 22,971.36/x
  3. Step 3: Cross multiply
    79,138.53x = 118,719.48 × 22,971.36
  4. Step 4: Simplify right side
    79,138.53x = 2,727,147,914.09
  5. Step 5: Solve for x
    x = 2,727,147,914.09/79,138.53
  6. Step 6: Final answer
    x = 34,460.43

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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.