Home / 78,704.06-118,072.90-25,399.07

Finding the Fourth Proportional to 78,704.06, 118,072.90 and 25,399.07

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Solution

The fourth proportional to 78,704.06, 118,072.90 and 25,399.07 is: 38,104.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,704.06 : 118,072.90 = 25,399.07 : x
  2. Step 2: Convert to fraction form
    78,704.06/118,072.90 = 25,399.07/x
  3. Step 3: Cross multiply
    78,704.06x = 118,072.90 × 25,399.07
  4. Step 4: Simplify right side
    78,704.06x = 2,998,942,400.52
  5. Step 5: Solve for x
    x = 2,998,942,400.52/78,704.06
  6. Step 6: Final answer
    x = 38,104.04

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1.5x scale

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.