Home / 81,606.30-122,407.83-53,702.61

Finding the Fourth Proportional to 81,606.30, 122,407.83 and 53,702.61

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Solution

The fourth proportional to 81,606.30, 122,407.83 and 53,702.61 is: 80,552.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,606.30 : 122,407.83 = 53,702.61 : x
  2. Step 2: Convert to fraction form
    81,606.30/122,407.83 = 53,702.61/x
  3. Step 3: Cross multiply
    81,606.30x = 122,407.83 × 53,702.61
  4. Step 4: Simplify right side
    81,606.30x = 6,573,619,955.44
  5. Step 5: Solve for x
    x = 6,573,619,955.44/81,606.30
  6. Step 6: Final answer
    x = 80,552.85

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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.