Home / 81,935.64-122,905.86-32,013.72

Finding the Fourth Proportional to 81,935.64, 122,905.86 and 32,013.72

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Solution

The fourth proportional to 81,935.64, 122,905.86 and 32,013.72 is: 48,021.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,935.64 : 122,905.86 = 32,013.72 : x
  2. Step 2: Convert to fraction form
    81,935.64/122,905.86 = 32,013.72/x
  3. Step 3: Cross multiply
    81,935.64x = 122,905.86 × 32,013.72
  4. Step 4: Simplify right side
    81,935.64x = 3,934,673,788.40
  5. Step 5: Solve for x
    x = 3,934,673,788.40/81,935.64
  6. Step 6: Final answer
    x = 48,021.52

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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.