Home / 53,958.42-80,974.49-18,897.57

Finding the Fourth Proportional to 53,958.42, 80,974.49 and 18,897.57

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Solution

The fourth proportional to 53,958.42, 80,974.49 and 18,897.57 is: 28,359.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,958.42 : 80,974.49 = 18,897.57 : x
  2. Step 2: Convert to fraction form
    53,958.42/80,974.49 = 18,897.57/x
  3. Step 3: Cross multiply
    53,958.42x = 80,974.49 × 18,897.57
  4. Step 4: Simplify right side
    53,958.42x = 1,530,220,998.50
  5. Step 5: Solve for x
    x = 1,530,220,998.50/53,958.42
  6. Step 6: Final answer
    x = 28,359.26

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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.