Home / 77,738.03-116,615.38-21,578.38

Finding the Fourth Proportional to 77,738.03, 116,615.38 and 21,578.38

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Solution

The fourth proportional to 77,738.03, 116,615.38 and 21,578.38 is: 32,369.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,738.03 : 116,615.38 = 21,578.38 : x
  2. Step 2: Convert to fraction form
    77,738.03/116,615.38 = 21,578.38/x
  3. Step 3: Cross multiply
    77,738.03x = 116,615.38 × 21,578.38
  4. Step 4: Simplify right side
    77,738.03x = 2,516,370,678.46
  5. Step 5: Solve for x
    x = 2,516,370,678.46/77,738.03
  6. Step 6: Final answer
    x = 32,369.88

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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.