Home / 54,391.60-81,587.40-19,328.52

Finding the Fourth Proportional to 54,391.60, 81,587.40 and 19,328.52

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Solution

The fourth proportional to 54,391.60, 81,587.40 and 19,328.52 is: 28,992.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,391.60 : 81,587.40 = 19,328.52 : x
  2. Step 2: Convert to fraction form
    54,391.60/81,587.40 = 19,328.52/x
  3. Step 3: Cross multiply
    54,391.60x = 81,587.40 × 19,328.52
  4. Step 4: Simplify right side
    54,391.60x = 1,576,964,034.84
  5. Step 5: Solve for x
    x = 1,576,964,034.84/54,391.60
  6. Step 6: Final answer
    x = 28,992.79

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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.