Home / 78,370.09-117,559.58-25,066.75

Finding the Fourth Proportional to 78,370.09, 117,559.58 and 25,066.75

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Solution

The fourth proportional to 78,370.09, 117,559.58 and 25,066.75 is: 37,601.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,370.09 : 117,559.58 = 25,066.75 : x
  2. Step 2: Convert to fraction form
    78,370.09/117,559.58 = 25,066.75/x
  3. Step 3: Cross multiply
    78,370.09x = 117,559.58 × 25,066.75
  4. Step 4: Simplify right side
    78,370.09x = 2,946,836,601.97
  5. Step 5: Solve for x
    x = 2,946,836,601.97/78,370.09
  6. Step 6: Final answer
    x = 37,601.55

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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.