Home / 53,989.32-80,968.14-18,922.44

Finding the Fourth Proportional to 53,989.32, 80,968.14 and 18,922.44

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Solution

The fourth proportional to 53,989.32, 80,968.14 and 18,922.44 is: 28,378.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,989.32 : 80,968.14 = 18,922.44 : x
  2. Step 2: Convert to fraction form
    53,989.32/80,968.14 = 18,922.44/x
  3. Step 3: Cross multiply
    53,989.32x = 80,968.14 × 18,922.44
  4. Step 4: Simplify right side
    53,989.32x = 1,532,114,771.06
  5. Step 5: Solve for x
    x = 1,532,114,771.06/53,989.32
  6. Step 6: Final answer
    x = 28,378.11

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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.