Home / 54,181.68-81,272.48-35,579.20

Finding the Fourth Proportional to 54,181.68, 81,272.48 and 35,579.20

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Solution

The fourth proportional to 54,181.68, 81,272.48 and 35,579.20 is: 53,368.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,181.68 : 81,272.48 = 35,579.20 : x
  2. Step 2: Convert to fraction form
    54,181.68/81,272.48 = 35,579.20/x
  3. Step 3: Cross multiply
    54,181.68x = 81,272.48 × 35,579.20
  4. Step 4: Simplify right side
    54,181.68x = 2,891,609,820.42
  5. Step 5: Solve for x
    x = 2,891,609,820.42/54,181.68
  6. Step 6: Final answer
    x = 53,368.77

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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.