Home / 74,968.69-112,436.44-21,649.09

Finding the Fourth Proportional to 74,968.69, 112,436.44 and 21,649.09

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Solution

The fourth proportional to 74,968.69, 112,436.44 and 21,649.09 is: 32,468.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,968.69 : 112,436.44 = 21,649.09 : x
  2. Step 2: Convert to fraction form
    74,968.69/112,436.44 = 21,649.09/x
  3. Step 3: Cross multiply
    74,968.69x = 112,436.44 × 21,649.09
  4. Step 4: Simplify right side
    74,968.69x = 2,434,146,608.84
  5. Step 5: Solve for x
    x = 2,434,146,608.84/74,968.69
  6. Step 6: Final answer
    x = 32,468.84

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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.