Home / 105,338.25-145,366.79-57,591.61

Finding the Fourth Proportional to 105,338.25, 145,366.79 and 57,591.61

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Solution

The fourth proportional to 105,338.25, 145,366.79 and 57,591.61 is: 79,476.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,338.25 : 145,366.79 = 57,591.61 : x
  2. Step 2: Convert to fraction form
    105,338.25/145,366.79 = 57,591.61/x
  3. Step 3: Cross multiply
    105,338.25x = 145,366.79 × 57,591.61
  4. Step 4: Simplify right side
    105,338.25x = 8,371,906,825.26
  5. Step 5: Solve for x
    x = 8,371,906,825.26/105,338.25
  6. Step 6: Final answer
    x = 79,476.42

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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.