Home / 53,857.36-80,780.28-18,797.68

Finding the Fourth Proportional to 53,857.36, 80,780.28 and 18,797.68

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Solution

The fourth proportional to 53,857.36, 80,780.28 and 18,797.68 is: 28,194.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,857.36 : 80,780.28 = 18,797.68 : x
  2. Step 2: Convert to fraction form
    53,857.36/80,780.28 = 18,797.68/x
  3. Step 3: Cross multiply
    53,857.36x = 80,780.28 × 18,797.68
  4. Step 4: Simplify right side
    53,857.36x = 1,518,481,853.75
  5. Step 5: Solve for x
    x = 1,518,481,853.75/53,857.36
  6. Step 6: Final answer
    x = 28,194.51

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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.