Home / 81,786.68-112,860.02-45,982.25

Finding the Fourth Proportional to 81,786.68, 112,860.02 and 45,982.25

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Solution

The fourth proportional to 81,786.68, 112,860.02 and 45,982.25 is: 63,452.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,786.68 : 112,860.02 = 45,982.25 : x
  2. Step 2: Convert to fraction form
    81,786.68/112,860.02 = 45,982.25/x
  3. Step 3: Cross multiply
    81,786.68x = 112,860.02 × 45,982.25
  4. Step 4: Simplify right side
    81,786.68x = 5,189,556,860.43
  5. Step 5: Solve for x
    x = 5,189,556,860.43/81,786.68
  6. Step 6: Final answer
    x = 63,452.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.