Home / 76,815.03-105,944.66-49,966.11

Finding the Fourth Proportional to 76,815.03, 105,944.66 and 49,966.11

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Solution

The fourth proportional to 76,815.03, 105,944.66 and 49,966.11 is: 68,914.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,815.03 : 105,944.66 = 49,966.11 : x
  2. Step 2: Convert to fraction form
    76,815.03/105,944.66 = 49,966.11/x
  3. Step 3: Cross multiply
    76,815.03x = 105,944.66 × 49,966.11
  4. Step 4: Simplify right side
    76,815.03x = 5,293,642,285.64
  5. Step 5: Solve for x
    x = 5,293,642,285.64/76,815.03
  6. Step 6: Final answer
    x = 68,914.15

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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.