Home / 74,935.35-112,400.37-18,775.92

Finding the Fourth Proportional to 74,935.35, 112,400.37 and 18,775.92

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Solution

The fourth proportional to 74,935.35, 112,400.37 and 18,775.92 is: 28,163.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,935.35 : 112,400.37 = 18,775.92 : x
  2. Step 2: Convert to fraction form
    74,935.35/112,400.37 = 18,775.92/x
  3. Step 3: Cross multiply
    74,935.35x = 112,400.37 × 18,775.92
  4. Step 4: Simplify right side
    74,935.35x = 2,110,420,355.09
  5. Step 5: Solve for x
    x = 2,110,420,355.09/74,935.35
  6. Step 6: Final answer
    x = 28,163.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.