Home / 92,279.08-138,418.62-25,719.40

Finding the Fourth Proportional to 92,279.08, 138,418.62 and 25,719.40

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Solution

The fourth proportional to 92,279.08, 138,418.62 and 25,719.40 is: 38,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,279.08 : 138,418.62 = 25,719.40 : x
  2. Step 2: Convert to fraction form
    92,279.08/138,418.62 = 25,719.40/x
  3. Step 3: Cross multiply
    92,279.08x = 138,418.62 × 25,719.40
  4. Step 4: Simplify right side
    92,279.08x = 3,560,043,855.23
  5. Step 5: Solve for x
    x = 3,560,043,855.23/92,279.08
  6. Step 6: Final answer
    x = 38,579.10

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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.