Home / 81,464.28-122,262.44-42,032.67

Finding the Fourth Proportional to 81,464.28, 122,262.44 and 42,032.67

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Solution

The fourth proportional to 81,464.28, 122,262.44 and 42,032.67 is: 63,083.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,464.28 : 122,262.44 = 42,032.67 : x
  2. Step 2: Convert to fraction form
    81,464.28/122,262.44 = 42,032.67/x
  3. Step 3: Cross multiply
    81,464.28x = 122,262.44 × 42,032.67
  4. Step 4: Simplify right side
    81,464.28x = 5,139,016,583.75
  5. Step 5: Solve for x
    x = 5,139,016,583.75/81,464.28
  6. Step 6: Final answer
    x = 63,083.07

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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.