Home / 67,986.08-101,961.28-30,525.20

Finding the Fourth Proportional to 67,986.08, 101,961.28 and 30,525.20

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Solution

The fourth proportional to 67,986.08, 101,961.28 and 30,525.20 is: 45,779.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,986.08 : 101,961.28 = 30,525.20 : x
  2. Step 2: Convert to fraction form
    67,986.08/101,961.28 = 30,525.20/x
  3. Step 3: Cross multiply
    67,986.08x = 101,961.28 × 30,525.20
  4. Step 4: Simplify right side
    67,986.08x = 3,112,388,464.26
  5. Step 5: Solve for x
    x = 3,112,388,464.26/67,986.08
  6. Step 6: Final answer
    x = 45,779.79

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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.