Home / 53,112.88-79,673.40-13,670.38

Finding the Fourth Proportional to 53,112.88, 79,673.40 and 13,670.38

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Solution

The fourth proportional to 53,112.88, 79,673.40 and 13,670.38 is: 20,506.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,112.88 : 79,673.40 = 13,670.38 : x
  2. Step 2: Convert to fraction form
    53,112.88/79,673.40 = 13,670.38/x
  3. Step 3: Cross multiply
    53,112.88x = 79,673.40 × 13,670.38
  4. Step 4: Simplify right side
    53,112.88x = 1,089,165,653.89
  5. Step 5: Solve for x
    x = 1,089,165,653.89/53,112.88
  6. Step 6: Final answer
    x = 20,506.62

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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.