Home / 105,636.25-145,778.07-57,891.52

Finding the Fourth Proportional to 105,636.25, 145,778.07 and 57,891.52

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Solution

The fourth proportional to 105,636.25, 145,778.07 and 57,891.52 is: 79,890.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,636.25 : 145,778.07 = 57,891.52 : x
  2. Step 2: Convert to fraction form
    105,636.25/145,778.07 = 57,891.52/x
  3. Step 3: Cross multiply
    105,636.25x = 145,778.07 × 57,891.52
  4. Step 4: Simplify right side
    105,636.25x = 8,439,314,054.97
  5. Step 5: Solve for x
    x = 8,439,314,054.97/105,636.25
  6. Step 6: Final answer
    x = 79,890.32

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