Home / 77,200.36-115,788.69-21,044.98

Finding the Fourth Proportional to 77,200.36, 115,788.69 and 21,044.98

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Solution

The fourth proportional to 77,200.36, 115,788.69 and 21,044.98 is: 31,564.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,200.36 : 115,788.69 = 21,044.98 : x
  2. Step 2: Convert to fraction form
    77,200.36/115,788.69 = 21,044.98/x
  3. Step 3: Cross multiply
    77,200.36x = 115,788.69 × 21,044.98
  4. Step 4: Simplify right side
    77,200.36x = 2,436,770,665.28
  5. Step 5: Solve for x
    x = 2,436,770,665.28/77,200.36
  6. Step 6: Final answer
    x = 31,564.24

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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.