Home / 74,031.14-102,163.79-40,040.30

Finding the Fourth Proportional to 74,031.14, 102,163.79 and 40,040.30

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Solution

The fourth proportional to 74,031.14, 102,163.79 and 40,040.30 is: 55,256.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,031.14 : 102,163.79 = 40,040.30 : x
  2. Step 2: Convert to fraction form
    74,031.14/102,163.79 = 40,040.30/x
  3. Step 3: Cross multiply
    74,031.14x = 102,163.79 × 40,040.30
  4. Step 4: Simplify right side
    74,031.14x = 4,090,668,800.74
  5. Step 5: Solve for x
    x = 4,090,668,800.74/74,031.14
  6. Step 6: Final answer
    x = 55,256.06

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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.