Home / 68,323.28-102,477.20-18,407.04

Finding the Fourth Proportional to 68,323.28, 102,477.20 and 18,407.04

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Solution

The fourth proportional to 68,323.28, 102,477.20 and 18,407.04 is: 27,608.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,323.28 : 102,477.20 = 18,407.04 : x
  2. Step 2: Convert to fraction form
    68,323.28/102,477.20 = 18,407.04/x
  3. Step 3: Cross multiply
    68,323.28x = 102,477.20 × 18,407.04
  4. Step 4: Simplify right side
    68,323.28x = 1,886,301,919.49
  5. Step 5: Solve for x
    x = 1,886,301,919.49/68,323.28
  6. Step 6: Final answer
    x = 27,608.48

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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.