Home / 81,968.28-122,890.05-34,597.86

Finding the Fourth Proportional to 81,968.28, 122,890.05 and 34,597.86

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Solution

The fourth proportional to 81,968.28, 122,890.05 and 34,597.86 is: 51,870.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,968.28 : 122,890.05 = 34,597.86 : x
  2. Step 2: Convert to fraction form
    81,968.28/122,890.05 = 34,597.86/x
  3. Step 3: Cross multiply
    81,968.28x = 122,890.05 × 34,597.86
  4. Step 4: Simplify right side
    81,968.28x = 4,251,732,745.29
  5. Step 5: Solve for x
    x = 4,251,732,745.29/81,968.28
  6. Step 6: Final answer
    x = 51,870.46

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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.