Home / 74,030.89-102,163.45-40,040.05

Finding the Fourth Proportional to 74,030.89, 102,163.45 and 40,040.05

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Solution

The fourth proportional to 74,030.89, 102,163.45 and 40,040.05 is: 55,255.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,030.89 : 102,163.45 = 40,040.05 : x
  2. Step 2: Convert to fraction form
    74,030.89/102,163.45 = 40,040.05/x
  3. Step 3: Cross multiply
    74,030.89x = 102,163.45 × 40,040.05
  4. Step 4: Simplify right side
    74,030.89x = 4,090,629,290.66
  5. Step 5: Solve for x
    x = 4,090,629,290.66/74,030.89
  6. Step 6: Final answer
    x = 55,255.71

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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.