Home / 76,936.63-115,101.28-58,270.45

Finding the Fourth Proportional to 76,936.63, 115,101.28 and 58,270.45

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Solution

The fourth proportional to 76,936.63, 115,101.28 and 58,270.45 is: 87,175.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,936.63 : 115,101.28 = 58,270.45 : x
  2. Step 2: Convert to fraction form
    76,936.63/115,101.28 = 58,270.45/x
  3. Step 3: Cross multiply
    76,936.63x = 115,101.28 × 58,270.45
  4. Step 4: Simplify right side
    76,936.63x = 6,707,003,381.18
  5. Step 5: Solve for x
    x = 6,707,003,381.18/76,936.63
  6. Step 6: Final answer
    x = 87,175.68

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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.