Home / 71,910.49-99,236.94-40,081.41

Finding the Fourth Proportional to 71,910.49, 99,236.94 and 40,081.41

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Solution

The fourth proportional to 71,910.49, 99,236.94 and 40,081.41 is: 55,312.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,910.49 : 99,236.94 = 40,081.41 : x
  2. Step 2: Convert to fraction form
    71,910.49/99,236.94 = 40,081.41/x
  3. Step 3: Cross multiply
    71,910.49x = 99,236.94 × 40,081.41
  4. Step 4: Simplify right side
    71,910.49x = 3,977,556,479.29
  5. Step 5: Solve for x
    x = 3,977,556,479.29/71,910.49
  6. Step 6: Final answer
    x = 55,312.60

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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.