Home / 77,721.66-116,570.14-27,792.45

Finding the Fourth Proportional to 77,721.66, 116,570.14 and 27,792.45

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Solution

The fourth proportional to 77,721.66, 116,570.14 and 27,792.45 is: 41,684.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,721.66 : 116,570.14 = 27,792.45 : x
  2. Step 2: Convert to fraction form
    77,721.66/116,570.14 = 27,792.45/x
  3. Step 3: Cross multiply
    77,721.66x = 116,570.14 × 27,792.45
  4. Step 4: Simplify right side
    77,721.66x = 3,239,769,717.96
  5. Step 5: Solve for x
    x = 3,239,769,717.96/77,721.66
  6. Step 6: Final answer
    x = 41,684.26

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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.