Home / 74,765.82-103,176.92-40,774.36

Finding the Fourth Proportional to 74,765.82, 103,176.92 and 40,774.36

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Solution

The fourth proportional to 74,765.82, 103,176.92 and 40,774.36 is: 56,268.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,765.82 : 103,176.92 = 40,774.36 : x
  2. Step 2: Convert to fraction form
    74,765.82/103,176.92 = 40,774.36/x
  3. Step 3: Cross multiply
    74,765.82x = 103,176.92 × 40,774.36
  4. Step 4: Simplify right side
    74,765.82x = 4,206,972,879.77
  5. Step 5: Solve for x
    x = 4,206,972,879.77/74,765.82
  6. Step 6: Final answer
    x = 56,268.67

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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.