Home / 72,389.16-108,556.40-34,936.79

Finding the Fourth Proportional to 72,389.16, 108,556.40 and 34,936.79

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Solution

The fourth proportional to 72,389.16, 108,556.40 and 34,936.79 is: 52,391.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,389.16 : 108,556.40 = 34,936.79 : x
  2. Step 2: Convert to fraction form
    72,389.16/108,556.40 = 34,936.79/x
  3. Step 3: Cross multiply
    72,389.16x = 108,556.40 × 34,936.79
  4. Step 4: Simplify right side
    72,389.16x = 3,792,611,694.52
  5. Step 5: Solve for x
    x = 3,792,611,694.52/72,389.16
  6. Step 6: Final answer
    x = 52,391.98

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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.