Home / 54,556.95-75,287.91-30,687.66

Finding the Fourth Proportional to 54,556.95, 75,287.91 and 30,687.66

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Solution

The fourth proportional to 54,556.95, 75,287.91 and 30,687.66 is: 42,348.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,556.95 : 75,287.91 = 30,687.66 : x
  2. Step 2: Convert to fraction form
    54,556.95/75,287.91 = 30,687.66/x
  3. Step 3: Cross multiply
    54,556.95x = 75,287.91 × 30,687.66
  4. Step 4: Simplify right side
    54,556.95x = 2,310,409,784.19
  5. Step 5: Solve for x
    x = 2,310,409,784.19/54,556.95
  6. Step 6: Final answer
    x = 42,348.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.