Home / 77,981.80-116,981.85-27,365.38

Finding the Fourth Proportional to 77,981.80, 116,981.85 and 27,365.38

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Solution

The fourth proportional to 77,981.80, 116,981.85 and 27,365.38 is: 41,051.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,981.80 : 116,981.85 = 27,365.38 : x
  2. Step 2: Convert to fraction form
    77,981.80/116,981.85 = 27,365.38/x
  3. Step 3: Cross multiply
    77,981.80x = 116,981.85 × 27,365.38
  4. Step 4: Simplify right side
    77,981.80x = 3,201,252,193.44
  5. Step 5: Solve for x
    x = 3,201,252,193.44/77,981.80
  6. Step 6: Final answer
    x = 41,051.27

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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.