Home / 74,031.82-102,163.60-40,040.34

Finding the Fourth Proportional to 74,031.82, 102,163.60 and 40,040.34

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Solution

The fourth proportional to 74,031.82, 102,163.60 and 40,040.34 is: 55,255.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,031.82 : 102,163.60 = 40,040.34 : x
  2. Step 2: Convert to fraction form
    74,031.82/102,163.60 = 40,040.34/x
  3. Step 3: Cross multiply
    74,031.82x = 102,163.60 × 40,040.34
  4. Step 4: Simplify right side
    74,031.82x = 4,090,665,296.00
  5. Step 5: Solve for x
    x = 4,090,665,296.00/74,031.82
  6. Step 6: Final answer
    x = 55,255.50

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1.5x scale

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.