Home / 54,145.70-81,206.40-35,556.20

Finding the Fourth Proportional to 54,145.70, 81,206.40 and 35,556.20

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Solution

The fourth proportional to 54,145.70, 81,206.40 and 35,556.20 is: 53,326.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,145.70 : 81,206.40 = 35,556.20 : x
  2. Step 2: Convert to fraction form
    54,145.70/81,206.40 = 35,556.20/x
  3. Step 3: Cross multiply
    54,145.70x = 81,206.40 × 35,556.20
  4. Step 4: Simplify right side
    54,145.70x = 2,887,390,999.68
  5. Step 5: Solve for x
    x = 2,887,390,999.68/54,145.70
  6. Step 6: Final answer
    x = 53,326.32

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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.