Home / 51,945.48-77,918.83-18,689.31

Finding the Fourth Proportional to 51,945.48, 77,918.83 and 18,689.31

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Solution

The fourth proportional to 51,945.48, 77,918.83 and 18,689.31 is: 28,034.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,945.48 : 77,918.83 = 18,689.31 : x
  2. Step 2: Convert to fraction form
    51,945.48/77,918.83 = 18,689.31/x
  3. Step 3: Cross multiply
    51,945.48x = 77,918.83 × 18,689.31
  4. Step 4: Simplify right side
    51,945.48x = 1,456,249,121.98
  5. Step 5: Solve for x
    x = 1,456,249,121.98/51,945.48
  6. Step 6: Final answer
    x = 28,034.18

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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.