Home / 80,880.11-111,582.73-54,040.15

Finding the Fourth Proportional to 80,880.11, 111,582.73 and 54,040.15

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Solution

The fourth proportional to 80,880.11, 111,582.73 and 54,040.15 is: 74,554.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,880.11 : 111,582.73 = 54,040.15 : x
  2. Step 2: Convert to fraction form
    80,880.11/111,582.73 = 54,040.15/x
  3. Step 3: Cross multiply
    80,880.11x = 111,582.73 × 54,040.15
  4. Step 4: Simplify right side
    80,880.11x = 6,029,947,466.61
  5. Step 5: Solve for x
    x = 6,029,947,466.61/80,880.11
  6. Step 6: Final answer
    x = 74,554.15

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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.