Home / 53,682-80,537.28-18,621.60

Finding the Fourth Proportional to 53,682, 80,537.28 and 18,621.60

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Solution

The fourth proportional to 53,682, 80,537.28 and 18,621.60 is: 27,937.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,682 : 80,537.28 = 18,621.60 : x
  2. Step 2: Convert to fraction form
    53,682/80,537.28 = 18,621.60/x
  3. Step 3: Cross multiply
    53,682x = 80,537.28 × 18,621.60
  4. Step 4: Simplify right side
    53,682x = 1,499,733,013.25
  5. Step 5: Solve for x
    x = 1,499,733,013.25/53,682
  6. Step 6: Final answer
    x = 27,937.35

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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.