Home / 81,898.46-122,865.30-48,579.51

Finding the Fourth Proportional to 81,898.46, 122,865.30 and 48,579.51

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Solution

The fourth proportional to 81,898.46, 122,865.30 and 48,579.51 is: 72,879.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,898.46 : 122,865.30 = 48,579.51 : x
  2. Step 2: Convert to fraction form
    81,898.46/122,865.30 = 48,579.51/x
  3. Step 3: Cross multiply
    81,898.46x = 122,865.30 × 48,579.51
  4. Step 4: Simplify right side
    81,898.46x = 5,968,736,070.00
  5. Step 5: Solve for x
    x = 5,968,736,070.00/81,898.46
  6. Step 6: Final answer
    x = 72,879.72

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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.