Home / 53,286.90-79,875.27-19,983.48

Finding the Fourth Proportional to 53,286.90, 79,875.27 and 19,983.48

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Solution

The fourth proportional to 53,286.90, 79,875.27 and 19,983.48 is: 29,954.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,286.90 : 79,875.27 = 19,983.48 : x
  2. Step 2: Convert to fraction form
    53,286.90/79,875.27 = 19,983.48/x
  3. Step 3: Cross multiply
    53,286.90x = 79,875.27 × 19,983.48
  4. Step 4: Simplify right side
    53,286.90x = 1,596,185,860.54
  5. Step 5: Solve for x
    x = 1,596,185,860.54/53,286.90
  6. Step 6: Final answer
    x = 29,954.56

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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.