Home / 53,918.56-80,897.20-18,863.36

Finding the Fourth Proportional to 53,918.56, 80,897.20 and 18,863.36

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Solution

The fourth proportional to 53,918.56, 80,897.20 and 18,863.36 is: 28,301.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,918.56 : 80,897.20 = 18,863.36 : x
  2. Step 2: Convert to fraction form
    53,918.56/80,897.20 = 18,863.36/x
  3. Step 3: Cross multiply
    53,918.56x = 80,897.20 × 18,863.36
  4. Step 4: Simplify right side
    53,918.56x = 1,525,993,006.59
  5. Step 5: Solve for x
    x = 1,525,993,006.59/53,918.56
  6. Step 6: Final answer
    x = 28,301.81

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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.