Home / 72,828.09-100,504.67-40,998.15

Finding the Fourth Proportional to 72,828.09, 100,504.67 and 40,998.15

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Solution

The fourth proportional to 72,828.09, 100,504.67 and 40,998.15 is: 56,578.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,828.09 : 100,504.67 = 40,998.15 : x
  2. Step 2: Convert to fraction form
    72,828.09/100,504.67 = 40,998.15/x
  3. Step 3: Cross multiply
    72,828.09x = 100,504.67 × 40,998.15
  4. Step 4: Simplify right side
    72,828.09x = 4,120,505,331.37
  5. Step 5: Solve for x
    x = 4,120,505,331.37/72,828.09
  6. Step 6: Final answer
    x = 56,578.52

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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.