Home / 105,589.75-145,717.49-57,843.10

Finding the Fourth Proportional to 105,589.75, 145,717.49 and 57,843.10

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Solution

The fourth proportional to 105,589.75, 145,717.49 and 57,843.10 is: 79,825.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,589.75 : 145,717.49 = 57,843.10 : x
  2. Step 2: Convert to fraction form
    105,589.75/145,717.49 = 57,843.10/x
  3. Step 3: Cross multiply
    105,589.75x = 145,717.49 × 57,843.10
  4. Step 4: Simplify right side
    105,589.75x = 8,428,751,345.82
  5. Step 5: Solve for x
    x = 8,428,751,345.82/105,589.75
  6. Step 6: Final answer
    x = 79,825.47

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1.5x scale

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.