Home / 53,851.23-80,740.40-18,771.75

Finding the Fourth Proportional to 53,851.23, 80,740.40 and 18,771.75

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Solution

The fourth proportional to 53,851.23, 80,740.40 and 18,771.75 is: 28,144.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,851.23 : 80,740.40 = 18,771.75 : x
  2. Step 2: Convert to fraction form
    53,851.23/80,740.40 = 18,771.75/x
  3. Step 3: Cross multiply
    53,851.23x = 80,740.40 × 18,771.75
  4. Step 4: Simplify right side
    53,851.23x = 1,515,638,509.84
  5. Step 5: Solve for x
    x = 1,515,638,509.84/53,851.23
  6. Step 6: Final answer
    x = 28,144.92

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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.