Home / 33,106.80-49,660.20-31,378.80

Finding the Fourth Proportional to 33,106.80, 49,660.20 and 31,378.80

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Solution

The fourth proportional to 33,106.80, 49,660.20 and 31,378.80 is: 47,068.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,106.80 : 49,660.20 = 31,378.80 : x
  2. Step 2: Convert to fraction form
    33,106.80/49,660.20 = 31,378.80/x
  3. Step 3: Cross multiply
    33,106.80x = 49,660.20 × 31,378.80
  4. Step 4: Simplify right side
    33,106.80x = 1,558,277,483.76
  5. Step 5: Solve for x
    x = 1,558,277,483.76/33,106.80
  6. Step 6: Final answer
    x = 47,068.20

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1.5x scale

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.