Home / 75,372.45-112,980-25,435.35

Finding the Fourth Proportional to 75,372.45, 112,980 and 25,435.35

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Solution

The fourth proportional to 75,372.45, 112,980 and 25,435.35 is: 38,126.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,372.45 : 112,980 = 25,435.35 : x
  2. Step 2: Convert to fraction form
    75,372.45/112,980 = 25,435.35/x
  3. Step 3: Cross multiply
    75,372.45x = 112,980 × 25,435.35
  4. Step 4: Simplify right side
    75,372.45x = 2,873,685,843
  5. Step 5: Solve for x
    x = 2,873,685,843/75,372.45
  6. Step 6: Final answer
    x = 38,126.48

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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.