Home / 81,436.23-122,156.03-22,271.54

Finding the Fourth Proportional to 81,436.23, 122,156.03 and 22,271.54

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Solution

The fourth proportional to 81,436.23, 122,156.03 and 22,271.54 is: 33,407.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,436.23 : 122,156.03 = 22,271.54 : x
  2. Step 2: Convert to fraction form
    81,436.23/122,156.03 = 22,271.54/x
  3. Step 3: Cross multiply
    81,436.23x = 122,156.03 × 22,271.54
  4. Step 4: Simplify right side
    81,436.23x = 2,720,602,353.28
  5. Step 5: Solve for x
    x = 2,720,602,353.28/81,436.23
  6. Step 6: Final answer
    x = 33,407.76

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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.