Home / 75,418.07-113,025.05-28,645.43

Finding the Fourth Proportional to 75,418.07, 113,025.05 and 28,645.43

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Solution

The fourth proportional to 75,418.07, 113,025.05 and 28,645.43 is: 42,929.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,418.07 : 113,025.05 = 28,645.43 : x
  2. Step 2: Convert to fraction form
    75,418.07/113,025.05 = 28,645.43/x
  3. Step 3: Cross multiply
    75,418.07x = 113,025.05 × 28,645.43
  4. Step 4: Simplify right side
    75,418.07x = 3,237,651,297.36
  5. Step 5: Solve for x
    x = 3,237,651,297.36/75,418.07
  6. Step 6: Final answer
    x = 42,929.38

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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.