Home / 78,942.23-118,431.96-25,634.03

Finding the Fourth Proportional to 78,942.23, 118,431.96 and 25,634.03

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Solution

The fourth proportional to 78,942.23, 118,431.96 and 25,634.03 is: 38,457.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,942.23 : 118,431.96 = 25,634.03 : x
  2. Step 2: Convert to fraction form
    78,942.23/118,431.96 = 25,634.03/x
  3. Step 3: Cross multiply
    78,942.23x = 118,431.96 × 25,634.03
  4. Step 4: Simplify right side
    78,942.23x = 3,035,888,287.43
  5. Step 5: Solve for x
    x = 3,035,888,287.43/78,942.23
  6. Step 6: Final answer
    x = 38,457.09

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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.