Home / 53,112.84-79,669.98-13,669.08

Finding the Fourth Proportional to 53,112.84, 79,669.98 and 13,669.08

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Solution

The fourth proportional to 53,112.84, 79,669.98 and 13,669.08 is: 20,503.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,112.84 : 79,669.98 = 13,669.08 : x
  2. Step 2: Convert to fraction form
    53,112.84/79,669.98 = 13,669.08/x
  3. Step 3: Cross multiply
    53,112.84x = 79,669.98 × 13,669.08
  4. Step 4: Simplify right side
    53,112.84x = 1,089,015,330.22
  5. Step 5: Solve for x
    x = 1,089,015,330.22/53,112.84
  6. Step 6: Final answer
    x = 20,503.81

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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.