Home / 53,847.36-80,765.28-18,787.68

Finding the Fourth Proportional to 53,847.36, 80,765.28 and 18,787.68

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Solution

The fourth proportional to 53,847.36, 80,765.28 and 18,787.68 is: 28,179.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,847.36 : 80,765.28 = 18,787.68 : x
  2. Step 2: Convert to fraction form
    53,847.36/80,765.28 = 18,787.68/x
  3. Step 3: Cross multiply
    53,847.36x = 80,765.28 × 18,787.68
  4. Step 4: Simplify right side
    53,847.36x = 1,517,392,235.75
  5. Step 5: Solve for x
    x = 1,517,392,235.75/53,847.36
  6. Step 6: Final answer
    x = 28,179.51

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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.