Home / 76,747.77-115,022.39-53,017.46

Finding the Fourth Proportional to 76,747.77, 115,022.39 and 53,017.46

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Solution

The fourth proportional to 76,747.77, 115,022.39 and 53,017.46 is: 79,457.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,747.77 : 115,022.39 = 53,017.46 : x
  2. Step 2: Convert to fraction form
    76,747.77/115,022.39 = 53,017.46/x
  3. Step 3: Cross multiply
    76,747.77x = 115,022.39 × 53,017.46
  4. Step 4: Simplify right side
    76,747.77x = 6,098,194,120.73
  5. Step 5: Solve for x
    x = 6,098,194,120.73/76,747.77
  6. Step 6: Final answer
    x = 79,457.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.