Home / 81,968.56-113,125.10-50,158.60

Finding the Fourth Proportional to 81,968.56, 113,125.10 and 50,158.60

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Solution

The fourth proportional to 81,968.56, 113,125.10 and 50,158.60 is: 69,224.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,968.56 : 113,125.10 = 50,158.60 : x
  2. Step 2: Convert to fraction form
    81,968.56/113,125.10 = 50,158.60/x
  3. Step 3: Cross multiply
    81,968.56x = 113,125.10 × 50,158.60
  4. Step 4: Simplify right side
    81,968.56x = 5,674,196,640.86
  5. Step 5: Solve for x
    x = 5,674,196,640.86/81,968.56
  6. Step 6: Final answer
    x = 69,224.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.