Home / 71,914.92-99,242.74-40,083.18

Finding the Fourth Proportional to 71,914.92, 99,242.74 and 40,083.18

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Solution

The fourth proportional to 71,914.92, 99,242.74 and 40,083.18 is: 55,314.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,914.92 : 99,242.74 = 40,083.18 : x
  2. Step 2: Convert to fraction form
    71,914.92/99,242.74 = 40,083.18/x
  3. Step 3: Cross multiply
    71,914.92x = 99,242.74 × 40,083.18
  4. Step 4: Simplify right side
    71,914.92x = 3,977,964,611.11
  5. Step 5: Solve for x
    x = 3,977,964,611.11/71,914.92
  6. Step 6: Final answer
    x = 55,314.87

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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.