Home / 81,999.04-123,037.44-48,784.72

Finding the Fourth Proportional to 81,999.04, 123,037.44 and 48,784.72

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Solution

The fourth proportional to 81,999.04, 123,037.44 and 48,784.72 is: 73,200.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,999.04 : 123,037.44 = 48,784.72 : x
  2. Step 2: Convert to fraction form
    81,999.04/123,037.44 = 48,784.72/x
  3. Step 3: Cross multiply
    81,999.04x = 123,037.44 × 48,784.72
  4. Step 4: Simplify right side
    81,999.04x = 6,002,347,059.92
  5. Step 5: Solve for x
    x = 6,002,347,059.92/81,999.04
  6. Step 6: Final answer
    x = 73,200.21

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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.