Home / 53,911.32-80,880.44-20,634

Finding the Fourth Proportional to 53,911.32, 80,880.44 and 20,634

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Solution

The fourth proportional to 53,911.32, 80,880.44 and 20,634 is: 30,956.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,911.32 : 80,880.44 = 20,634 : x
  2. Step 2: Convert to fraction form
    53,911.32/80,880.44 = 20,634/x
  3. Step 3: Cross multiply
    53,911.32x = 80,880.44 × 20,634
  4. Step 4: Simplify right side
    53,911.32x = 1,668,886,998.96
  5. Step 5: Solve for x
    x = 1,668,886,998.96/53,911.32
  6. Step 6: Final answer
    x = 30,956.15

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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.