Home / 68,440.40-102,660.60-55,998.80

Finding the Fourth Proportional to 68,440.40, 102,660.60 and 55,998.80

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Solution

The fourth proportional to 68,440.40, 102,660.60 and 55,998.80 is: 83,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,440.40 : 102,660.60 = 55,998.80 : x
  2. Step 2: Convert to fraction form
    68,440.40/102,660.60 = 55,998.80/x
  3. Step 3: Cross multiply
    68,440.40x = 102,660.60 × 55,998.80
  4. Step 4: Simplify right side
    68,440.40x = 5,748,870,407.28
  5. Step 5: Solve for x
    x = 5,748,870,407.28/68,440.40
  6. Step 6: Final answer
    x = 83,998.20

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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.