Home / 76,963.34-115,325.94-51,905.18

Finding the Fourth Proportional to 76,963.34, 115,325.94 and 51,905.18

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Solution

The fourth proportional to 76,963.34, 115,325.94 and 51,905.18 is: 77,777.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,963.34 : 115,325.94 = 51,905.18 : x
  2. Step 2: Convert to fraction form
    76,963.34/115,325.94 = 51,905.18/x
  3. Step 3: Cross multiply
    76,963.34x = 115,325.94 × 51,905.18
  4. Step 4: Simplify right side
    76,963.34x = 5,986,013,674.37
  5. Step 5: Solve for x
    x = 5,986,013,674.37/76,963.34
  6. Step 6: Final answer
    x = 77,777.47

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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.