Home / 45,631.54-68,455.41-20,670.58

Finding the Fourth Proportional to 45,631.54, 68,455.41 and 20,670.58

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Solution

The fourth proportional to 45,631.54, 68,455.41 and 20,670.58 is: 31,009.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,631.54 : 68,455.41 = 20,670.58 : x
  2. Step 2: Convert to fraction form
    45,631.54/68,455.41 = 20,670.58/x
  3. Step 3: Cross multiply
    45,631.54x = 68,455.41 × 20,670.58
  4. Step 4: Simplify right side
    45,631.54x = 1,415,013,028.84
  5. Step 5: Solve for x
    x = 1,415,013,028.84/45,631.54
  6. Step 6: Final answer
    x = 31,009.54

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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.