Home / 53,923.40-80,856.30-18,864.20

Finding the Fourth Proportional to 53,923.40, 80,856.30 and 18,864.20

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Solution

The fourth proportional to 53,923.40, 80,856.30 and 18,864.20 is: 28,286.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,923.40 : 80,856.30 = 18,864.20 : x
  2. Step 2: Convert to fraction form
    53,923.40/80,856.30 = 18,864.20/x
  3. Step 3: Cross multiply
    53,923.40x = 80,856.30 × 18,864.20
  4. Step 4: Simplify right side
    53,923.40x = 1,525,289,414.46
  5. Step 5: Solve for x
    x = 1,525,289,414.46/53,923.40
  6. Step 6: Final answer
    x = 28,286.22

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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.