Home / 70,717.06-106,050.07-20,783.80

Finding the Fourth Proportional to 70,717.06, 106,050.07 and 20,783.80

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Solution

The fourth proportional to 70,717.06, 106,050.07 and 20,783.80 is: 31,168.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,717.06 : 106,050.07 = 20,783.80 : x
  2. Step 2: Convert to fraction form
    70,717.06/106,050.07 = 20,783.80/x
  3. Step 3: Cross multiply
    70,717.06x = 106,050.07 × 20,783.80
  4. Step 4: Simplify right side
    70,717.06x = 2,204,122,810.70
  5. Step 5: Solve for x
    x = 2,204,122,810.70/70,717.06
  6. Step 6: Final answer
    x = 31,168.19

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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.