Home / 75,112.38-103,535.28-50,905.80

Finding the Fourth Proportional to 75,112.38, 103,535.28 and 50,905.80

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Solution

The fourth proportional to 75,112.38, 103,535.28 and 50,905.80 is: 70,168.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,112.38 : 103,535.28 = 50,905.80 : x
  2. Step 2: Convert to fraction form
    75,112.38/103,535.28 = 50,905.80/x
  3. Step 3: Cross multiply
    75,112.38x = 103,535.28 × 50,905.80
  4. Step 4: Simplify right side
    75,112.38x = 5,270,546,256.62
  5. Step 5: Solve for x
    x = 5,270,546,256.62/75,112.38
  6. Step 6: Final answer
    x = 70,168.81

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1.5x scale

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.