Home / 78,563.26-117,855.96-25,237.35

Finding the Fourth Proportional to 78,563.26, 117,855.96 and 25,237.35

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Solution

The fourth proportional to 78,563.26, 117,855.96 and 25,237.35 is: 37,859.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,563.26 : 117,855.96 = 25,237.35 : x
  2. Step 2: Convert to fraction form
    78,563.26/117,855.96 = 25,237.35/x
  3. Step 3: Cross multiply
    78,563.26x = 117,855.96 × 25,237.35
  4. Step 4: Simplify right side
    78,563.26x = 2,974,372,112.11
  5. Step 5: Solve for x
    x = 2,974,372,112.11/78,563.26
  6. Step 6: Final answer
    x = 37,859.58

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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.