Home / 53,839.49-80,749.51-18,789.17

Finding the Fourth Proportional to 53,839.49, 80,749.51 and 18,789.17

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Solution

The fourth proportional to 53,839.49, 80,749.51 and 18,789.17 is: 28,180.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,839.49 : 80,749.51 = 18,789.17 : x
  2. Step 2: Convert to fraction form
    53,839.49/80,749.51 = 18,789.17/x
  3. Step 3: Cross multiply
    53,839.49x = 80,749.51 × 18,789.17
  4. Step 4: Simplify right side
    53,839.49x = 1,517,215,820.09
  5. Step 5: Solve for x
    x = 1,517,215,820.09/53,839.49
  6. Step 6: Final answer
    x = 28,180.36

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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.