Home / 76,934.10-106,169.16-42,942.56

Finding the Fourth Proportional to 76,934.10, 106,169.16 and 42,942.56

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Solution

The fourth proportional to 76,934.10, 106,169.16 and 42,942.56 is: 59,260.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,934.10 : 106,169.16 = 42,942.56 : x
  2. Step 2: Convert to fraction form
    76,934.10/106,169.16 = 42,942.56/x
  3. Step 3: Cross multiply
    76,934.10x = 106,169.16 × 42,942.56
  4. Step 4: Simplify right side
    76,934.10x = 4,559,175,153.64
  5. Step 5: Solve for x
    x = 4,559,175,153.64/76,934.10
  6. Step 6: Final answer
    x = 59,260.78

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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.