Home / 71,912.24-99,239.36-40,083.16

Finding the Fourth Proportional to 71,912.24, 99,239.36 and 40,083.16

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Solution

The fourth proportional to 71,912.24, 99,239.36 and 40,083.16 is: 55,315.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,912.24 : 99,239.36 = 40,083.16 : x
  2. Step 2: Convert to fraction form
    71,912.24/99,239.36 = 40,083.16/x
  3. Step 3: Cross multiply
    71,912.24x = 99,239.36 × 40,083.16
  4. Step 4: Simplify right side
    71,912.24x = 3,977,826,696.66
  5. Step 5: Solve for x
    x = 3,977,826,696.66/71,912.24
  6. Step 6: Final answer
    x = 55,315.01

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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.