Home / 77,678.26-116,266.74-40,186.69

Finding the Fourth Proportional to 77,678.26, 116,266.74 and 40,186.69

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Solution

The fourth proportional to 77,678.26, 116,266.74 and 40,186.69 is: 60,150.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,678.26 : 116,266.74 = 40,186.69 : x
  2. Step 2: Convert to fraction form
    77,678.26/116,266.74 = 40,186.69/x
  3. Step 3: Cross multiply
    77,678.26x = 116,266.74 × 40,186.69
  4. Step 4: Simplify right side
    77,678.26x = 4,672,375,437.69
  5. Step 5: Solve for x
    x = 4,672,375,437.69/77,678.26
  6. Step 6: Final answer
    x = 60,150.36

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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.