Home / 72,795.96-100,458.11-40,965.39

Finding the Fourth Proportional to 72,795.96, 100,458.11 and 40,965.39

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Solution

The fourth proportional to 72,795.96, 100,458.11 and 40,965.39 is: 56,532.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,795.96 : 100,458.11 = 40,965.39 : x
  2. Step 2: Convert to fraction form
    72,795.96/100,458.11 = 40,965.39/x
  3. Step 3: Cross multiply
    72,795.96x = 100,458.11 × 40,965.39
  4. Step 4: Simplify right side
    72,795.96x = 4,115,305,449.99
  5. Step 5: Solve for x
    x = 4,115,305,449.99/72,795.96
  6. Step 6: Final answer
    x = 56,532.06

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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.