Home / 72,365.22-108,550.87-19,774.55

Finding the Fourth Proportional to 72,365.22, 108,550.87 and 19,774.55

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Solution

The fourth proportional to 72,365.22, 108,550.87 and 19,774.55 is: 29,662.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,365.22 : 108,550.87 = 19,774.55 : x
  2. Step 2: Convert to fraction form
    72,365.22/108,550.87 = 19,774.55/x
  3. Step 3: Cross multiply
    72,365.22x = 108,550.87 × 19,774.55
  4. Step 4: Simplify right side
    72,365.22x = 2,146,544,828.30
  5. Step 5: Solve for x
    x = 2,146,544,828.30/72,365.22
  6. Step 6: Final answer
    x = 29,662.66

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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.