Home / 53,981.08-80,972.64-18,450.54

Finding the Fourth Proportional to 53,981.08, 80,972.64 and 18,450.54

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Solution

The fourth proportional to 53,981.08, 80,972.64 and 18,450.54 is: 27,676.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,981.08 : 80,972.64 = 18,450.54 : x
  2. Step 2: Convert to fraction form
    53,981.08/80,972.64 = 18,450.54/x
  3. Step 3: Cross multiply
    53,981.08x = 80,972.64 × 18,450.54
  4. Step 4: Simplify right side
    53,981.08x = 1,493,988,933.23
  5. Step 5: Solve for x
    x = 1,493,988,933.23/53,981.08
  6. Step 6: Final answer
    x = 27,676.16

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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.