Home / 76,442.18-105,540.17-49,661.01

Finding the Fourth Proportional to 76,442.18, 105,540.17 and 49,661.01

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Solution

The fourth proportional to 76,442.18, 105,540.17 and 49,661.01 is: 68,564.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,442.18 : 105,540.17 = 49,661.01 : x
  2. Step 2: Convert to fraction form
    76,442.18/105,540.17 = 49,661.01/x
  3. Step 3: Cross multiply
    76,442.18x = 105,540.17 × 49,661.01
  4. Step 4: Simplify right side
    76,442.18x = 5,241,231,189.47
  5. Step 5: Solve for x
    x = 5,241,231,189.47/76,442.18
  6. Step 6: Final answer
    x = 68,564.65

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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.