Home / 68,541.37-102,812.05-38,557.60

Finding the Fourth Proportional to 68,541.37, 102,812.05 and 38,557.60

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Solution

The fourth proportional to 68,541.37, 102,812.05 and 38,557.60 is: 57,836.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,541.37 : 102,812.05 = 38,557.60 : x
  2. Step 2: Convert to fraction form
    68,541.37/102,812.05 = 38,557.60/x
  3. Step 3: Cross multiply
    68,541.37x = 102,812.05 × 38,557.60
  4. Step 4: Simplify right side
    68,541.37x = 3,964,185,899.08
  5. Step 5: Solve for x
    x = 3,964,185,899.08/68,541.37
  6. Step 6: Final answer
    x = 57,836.40

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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.