Home / 78,089.25-117,137.12-22,685.25

Finding the Fourth Proportional to 78,089.25, 117,137.12 and 22,685.25

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Solution

The fourth proportional to 78,089.25, 117,137.12 and 22,685.25 is: 34,028.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,089.25 : 117,137.12 = 22,685.25 : x
  2. Step 2: Convert to fraction form
    78,089.25/117,137.12 = 22,685.25/x
  3. Step 3: Cross multiply
    78,089.25x = 117,137.12 × 22,685.25
  4. Step 4: Simplify right side
    78,089.25x = 2,657,284,738.05
  5. Step 5: Solve for x
    x = 2,657,284,738.05/78,089.25
  6. Step 6: Final answer
    x = 34,028.82

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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.