Home / 74,386.05-102,652.97-40,395.11

Finding the Fourth Proportional to 74,386.05, 102,652.97 and 40,395.11

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Solution

The fourth proportional to 74,386.05, 102,652.97 and 40,395.11 is: 55,745.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,386.05 : 102,652.97 = 40,395.11 : x
  2. Step 2: Convert to fraction form
    74,386.05/102,652.97 = 40,395.11/x
  3. Step 3: Cross multiply
    74,386.05x = 102,652.97 × 40,395.11
  4. Step 4: Simplify right side
    74,386.05x = 4,146,677,299.74
  5. Step 5: Solve for x
    x = 4,146,677,299.74/74,386.05
  6. Step 6: Final answer
    x = 55,745.36

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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.