Home / 54,403.53-75,076.74-30,530.31

Finding the Fourth Proportional to 54,403.53, 75,076.74 and 30,530.31

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Solution

The fourth proportional to 54,403.53, 75,076.74 and 30,530.31 is: 42,131.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,403.53 : 75,076.74 = 30,530.31 : x
  2. Step 2: Convert to fraction form
    54,403.53/75,076.74 = 30,530.31/x
  3. Step 3: Cross multiply
    54,403.53x = 75,076.74 × 30,530.31
  4. Step 4: Simplify right side
    54,403.53x = 2,292,116,145.99
  5. Step 5: Solve for x
    x = 2,292,116,145.99/54,403.53
  6. Step 6: Final answer
    x = 42,131.75

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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.