Home / 78,578.24-117,878.40-25,252.34

Finding the Fourth Proportional to 78,578.24, 117,878.40 and 25,252.34

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Solution

The fourth proportional to 78,578.24, 117,878.40 and 25,252.34 is: 37,882.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,578.24 : 117,878.40 = 25,252.34 : x
  2. Step 2: Convert to fraction form
    78,578.24/117,878.40 = 25,252.34/x
  3. Step 3: Cross multiply
    78,578.24x = 117,878.40 × 25,252.34
  4. Step 4: Simplify right side
    78,578.24x = 2,976,704,846.06
  5. Step 5: Solve for x
    x = 2,976,704,846.06/78,578.24
  6. Step 6: Final answer
    x = 37,882.05

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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.