Home / 53,768.90-80,651.52-20,487.77

Finding the Fourth Proportional to 53,768.90, 80,651.52 and 20,487.77

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Solution

The fourth proportional to 53,768.90, 80,651.52 and 20,487.77 is: 30,730.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,768.90 : 80,651.52 = 20,487.77 : x
  2. Step 2: Convert to fraction form
    53,768.90/80,651.52 = 20,487.77/x
  3. Step 3: Cross multiply
    53,768.90x = 80,651.52 × 20,487.77
  4. Step 4: Simplify right side
    53,768.90x = 1,652,369,388.65
  5. Step 5: Solve for x
    x = 1,652,369,388.65/53,768.90
  6. Step 6: Final answer
    x = 30,730.95

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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.