Home / 68,220.66-102,328.67-20,833.84

Finding the Fourth Proportional to 68,220.66, 102,328.67 and 20,833.84

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Solution

The fourth proportional to 68,220.66, 102,328.67 and 20,833.84 is: 31,250.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,220.66 : 102,328.67 = 20,833.84 : x
  2. Step 2: Convert to fraction form
    68,220.66/102,328.67 = 20,833.84/x
  3. Step 3: Cross multiply
    68,220.66x = 102,328.67 × 20,833.84
  4. Step 4: Simplify right side
    68,220.66x = 2,131,898,626.55
  5. Step 5: Solve for x
    x = 2,131,898,626.55/68,220.66
  6. Step 6: Final answer
    x = 31,250.05

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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.