Home / 53,122.90-79,658.94-30,942.60

Finding the Fourth Proportional to 53,122.90, 79,658.94 and 30,942.60

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Solution

The fourth proportional to 53,122.90, 79,658.94 and 30,942.60 is: 46,399.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,122.90 : 79,658.94 = 30,942.60 : x
  2. Step 2: Convert to fraction form
    53,122.90/79,658.94 = 30,942.60/x
  3. Step 3: Cross multiply
    53,122.90x = 79,658.94 × 30,942.60
  4. Step 4: Simplify right side
    53,122.90x = 2,464,854,716.84
  5. Step 5: Solve for x
    x = 2,464,854,716.84/53,122.90
  6. Step 6: Final answer
    x = 46,399.10

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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.