Home / 81,367.29-122,051.75-39,237.57

Finding the Fourth Proportional to 81,367.29, 122,051.75 and 39,237.57

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Solution

The fourth proportional to 81,367.29, 122,051.75 and 39,237.57 is: 58,856.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,367.29 : 122,051.75 = 39,237.57 : x
  2. Step 2: Convert to fraction form
    81,367.29/122,051.75 = 39,237.57/x
  3. Step 3: Cross multiply
    81,367.29x = 122,051.75 × 39,237.57
  4. Step 4: Simplify right side
    81,367.29x = 4,789,013,888.06
  5. Step 5: Solve for x
    x = 4,789,013,888.06/81,367.29
  6. Step 6: Final answer
    x = 58,856.75

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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.