Home / 33,081.80-49,622.70-31,915.40

Finding the Fourth Proportional to 33,081.80, 49,622.70 and 31,915.40

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Solution

The fourth proportional to 33,081.80, 49,622.70 and 31,915.40 is: 47,873.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,081.80 : 49,622.70 = 31,915.40 : x
  2. Step 2: Convert to fraction form
    33,081.80/49,622.70 = 31,915.40/x
  3. Step 3: Cross multiply
    33,081.80x = 49,622.70 × 31,915.40
  4. Step 4: Simplify right side
    33,081.80x = 1,583,728,319.58
  5. Step 5: Solve for x
    x = 1,583,728,319.58/33,081.80
  6. Step 6: Final answer
    x = 47,873.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.