Home / 92,278.83-138,418.29-25,720.68

Finding the Fourth Proportional to 92,278.83, 138,418.29 and 25,720.68

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Solution

The fourth proportional to 92,278.83, 138,418.29 and 25,720.68 is: 38,581.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,278.83 : 138,418.29 = 25,720.68 : x
  2. Step 2: Convert to fraction form
    92,278.83/138,418.29 = 25,720.68/x
  3. Step 3: Cross multiply
    92,278.83x = 138,418.29 × 25,720.68
  4. Step 4: Simplify right side
    92,278.83x = 3,560,212,543.24
  5. Step 5: Solve for x
    x = 3,560,212,543.24/92,278.83
  6. Step 6: Final answer
    x = 38,581.03

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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.