Home / 105,544.09-145,649.37-57,797.43

Finding the Fourth Proportional to 105,544.09, 145,649.37 and 57,797.43

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Solution

The fourth proportional to 105,544.09, 145,649.37 and 57,797.43 is: 79,759.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,544.09 : 145,649.37 = 57,797.43 : x
  2. Step 2: Convert to fraction form
    105,544.09/145,649.37 = 57,797.43/x
  3. Step 3: Cross multiply
    105,544.09x = 145,649.37 × 57,797.43
  4. Step 4: Simplify right side
    105,544.09x = 8,418,158,538.87
  5. Step 5: Solve for x
    x = 8,418,158,538.87/105,544.09
  6. Step 6: Final answer
    x = 79,759.64

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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.