Home / 53,872.06-80,775.06-20,556.40

Finding the Fourth Proportional to 53,872.06, 80,775.06 and 20,556.40

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Solution

The fourth proportional to 53,872.06, 80,775.06 and 20,556.40 is: 30,822.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,872.06 : 80,775.06 = 20,556.40 : x
  2. Step 2: Convert to fraction form
    53,872.06/80,775.06 = 20,556.40/x
  3. Step 3: Cross multiply
    53,872.06x = 80,775.06 × 20,556.40
  4. Step 4: Simplify right side
    53,872.06x = 1,660,444,443.38
  5. Step 5: Solve for x
    x = 1,660,444,443.38/53,872.06
  6. Step 6: Final answer
    x = 30,822.00

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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.