Home / 76,177.82-105,090.08-49,329.02

Finding the Fourth Proportional to 76,177.82, 105,090.08 and 49,329.02

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Solution

The fourth proportional to 76,177.82, 105,090.08 and 49,329.02 is: 68,051.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,177.82 : 105,090.08 = 49,329.02 : x
  2. Step 2: Convert to fraction form
    76,177.82/105,090.08 = 49,329.02/x
  3. Step 3: Cross multiply
    76,177.82x = 105,090.08 × 49,329.02
  4. Step 4: Simplify right side
    76,177.82x = 5,183,990,658.12
  5. Step 5: Solve for x
    x = 5,183,990,658.12/76,177.82
  6. Step 6: Final answer
    x = 68,051.18

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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.