Home / 71,912.37-99,013.23-61,136.04

Finding the Fourth Proportional to 71,912.37, 99,013.23 and 61,136.04

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Solution

The fourth proportional to 71,912.37, 99,013.23 and 61,136.04 is: 84,175.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,912.37 : 99,013.23 = 61,136.04 : x
  2. Step 2: Convert to fraction form
    71,912.37/99,013.23 = 61,136.04/x
  3. Step 3: Cross multiply
    71,912.37x = 99,013.23 × 61,136.04
  4. Step 4: Simplify right side
    71,912.37x = 6,053,276,789.81
  5. Step 5: Solve for x
    x = 6,053,276,789.81/71,912.37
  6. Step 6: Final answer
    x = 84,175.74

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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.