Home / 68,783.28-103,194.20-39,222.02

Finding the Fourth Proportional to 68,783.28, 103,194.20 and 39,222.02

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Solution

The fourth proportional to 68,783.28, 103,194.20 and 39,222.02 is: 58,844.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,783.28 : 103,194.20 = 39,222.02 : x
  2. Step 2: Convert to fraction form
    68,783.28/103,194.20 = 39,222.02/x
  3. Step 3: Cross multiply
    68,783.28x = 103,194.20 × 39,222.02
  4. Step 4: Simplify right side
    68,783.28x = 4,047,485,332.32
  5. Step 5: Solve for x
    x = 4,047,485,332.32/68,783.28
  6. Step 6: Final answer
    x = 58,844.03

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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.