Home / 53,074.12-79,620.90-21,892.36

Finding the Fourth Proportional to 53,074.12, 79,620.90 and 21,892.36

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Solution

The fourth proportional to 53,074.12, 79,620.90 and 21,892.36 is: 32,842.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,074.12 : 79,620.90 = 21,892.36 : x
  2. Step 2: Convert to fraction form
    53,074.12/79,620.90 = 21,892.36/x
  3. Step 3: Cross multiply
    53,074.12x = 79,620.90 × 21,892.36
  4. Step 4: Simplify right side
    53,074.12x = 1,743,089,406.32
  5. Step 5: Solve for x
    x = 1,743,089,406.32/53,074.12
  6. Step 6: Final answer
    x = 32,842.55

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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.