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Finding the Fourth Proportional to 33,139.20, 49,708.80 and 26,918.40

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Solution

The fourth proportional to 33,139.20, 49,708.80 and 26,918.40 is: 40,377.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,139.20 : 49,708.80 = 26,918.40 : x
  2. Step 2: Convert to fraction form
    33,139.20/49,708.80 = 26,918.40/x
  3. Step 3: Cross multiply
    33,139.20x = 49,708.80 × 26,918.40
  4. Step 4: Simplify right side
    33,139.20x = 1,338,081,361.92
  5. Step 5: Solve for x
    x = 1,338,081,361.92/33,139.20
  6. Step 6: Final answer
    x = 40,377.60

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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.