Home / 77,632.86-107,136.36-43,642.02

Finding the Fourth Proportional to 77,632.86, 107,136.36 and 43,642.02

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Solution

The fourth proportional to 77,632.86, 107,136.36 and 43,642.02 is: 60,227.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,632.86 : 107,136.36 = 43,642.02 : x
  2. Step 2: Convert to fraction form
    77,632.86/107,136.36 = 43,642.02/x
  3. Step 3: Cross multiply
    77,632.86x = 107,136.36 × 43,642.02
  4. Step 4: Simplify right side
    77,632.86x = 4,675,647,165.85
  5. Step 5: Solve for x
    x = 4,675,647,165.85/77,632.86
  6. Step 6: Final answer
    x = 60,227.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.