Home / 82,420.25-123,619.31-23,260.67

Finding the Fourth Proportional to 82,420.25, 123,619.31 and 23,260.67

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Solution

The fourth proportional to 82,420.25, 123,619.31 and 23,260.67 is: 34,887.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,420.25 : 123,619.31 = 23,260.67 : x
  2. Step 2: Convert to fraction form
    82,420.25/123,619.31 = 23,260.67/x
  3. Step 3: Cross multiply
    82,420.25x = 123,619.31 × 23,260.67
  4. Step 4: Simplify right side
    82,420.25x = 2,875,467,859.23
  5. Step 5: Solve for x
    x = 2,875,467,859.23/82,420.25
  6. Step 6: Final answer
    x = 34,887.88

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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.