Home / 67,238.02-100,871.88-20,494.54

Finding the Fourth Proportional to 67,238.02, 100,871.88 and 20,494.54

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Solution

The fourth proportional to 67,238.02, 100,871.88 and 20,494.54 is: 30,746.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,238.02 : 100,871.88 = 20,494.54 : x
  2. Step 2: Convert to fraction form
    67,238.02/100,871.88 = 20,494.54/x
  3. Step 3: Cross multiply
    67,238.02x = 100,871.88 × 20,494.54
  4. Step 4: Simplify right side
    67,238.02x = 2,067,322,779.54
  5. Step 5: Solve for x
    x = 2,067,322,779.54/67,238.02
  6. Step 6: Final answer
    x = 30,746.34

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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.