Home / 72,853.54-109,286.50-20,263.02

Finding the Fourth Proportional to 72,853.54, 109,286.50 and 20,263.02

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Solution

The fourth proportional to 72,853.54, 109,286.50 and 20,263.02 is: 30,396.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,853.54 : 109,286.50 = 20,263.02 : x
  2. Step 2: Convert to fraction form
    72,853.54/109,286.50 = 20,263.02/x
  3. Step 3: Cross multiply
    72,853.54x = 109,286.50 × 20,263.02
  4. Step 4: Simplify right side
    72,853.54x = 2,214,474,535.23
  5. Step 5: Solve for x
    x = 2,214,474,535.23/72,853.54
  6. Step 6: Final answer
    x = 30,396.25

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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.