Home / 72,862.92-109,293.78-20,272.26

Finding the Fourth Proportional to 72,862.92, 109,293.78 and 20,272.26

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Solution

The fourth proportional to 72,862.92, 109,293.78 and 20,272.26 is: 30,408.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,862.92 : 109,293.78 = 20,272.26 : x
  2. Step 2: Convert to fraction form
    72,862.92/109,293.78 = 20,272.26/x
  3. Step 3: Cross multiply
    72,862.92x = 109,293.78 × 20,272.26
  4. Step 4: Simplify right side
    72,862.92x = 2,215,631,924.54
  5. Step 5: Solve for x
    x = 2,215,631,924.54/72,862.92
  6. Step 6: Final answer
    x = 30,408.22

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1.5x scale

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.