Home / 97,940.18-135,185.47-57,677.29

Finding the Fourth Proportional to 97,940.18, 135,185.47 and 57,677.29

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Solution

The fourth proportional to 97,940.18, 135,185.47 and 57,677.29 is: 79,611.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,940.18 : 135,185.47 = 57,677.29 : x
  2. Step 2: Convert to fraction form
    97,940.18/135,185.47 = 57,677.29/x
  3. Step 3: Cross multiply
    97,940.18x = 135,185.47 × 57,677.29
  4. Step 4: Simplify right side
    97,940.18x = 7,797,131,556.98
  5. Step 5: Solve for x
    x = 7,797,131,556.98/97,940.18
  6. Step 6: Final answer
    x = 79,611.16

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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.