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Finding the Fourth Proportional to 73,005.65, 100,747.60 and 40,739.93

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Solution

The fourth proportional to 73,005.65, 100,747.60 and 40,739.93 is: 56,220.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,005.65 : 100,747.60 = 40,739.93 : x
  2. Step 2: Convert to fraction form
    73,005.65/100,747.60 = 40,739.93/x
  3. Step 3: Cross multiply
    73,005.65x = 100,747.60 × 40,739.93
  4. Step 4: Simplify right side
    73,005.65x = 4,104,449,718.85
  5. Step 5: Solve for x
    x = 4,104,449,718.85/73,005.65
  6. Step 6: Final answer
    x = 56,220.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.