Home / 53,020.44-79,541.19-19,740.78

Finding the Fourth Proportional to 53,020.44, 79,541.19 and 19,740.78

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Solution

The fourth proportional to 53,020.44, 79,541.19 and 19,740.78 is: 29,615.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,020.44 : 79,541.19 = 19,740.78 : x
  2. Step 2: Convert to fraction form
    53,020.44/79,541.19 = 19,740.78/x
  3. Step 3: Cross multiply
    53,020.44x = 79,541.19 × 19,740.78
  4. Step 4: Simplify right side
    53,020.44x = 1,570,205,132.73
  5. Step 5: Solve for x
    x = 1,570,205,132.73/53,020.44
  6. Step 6: Final answer
    x = 29,615.09

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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.