Home / 57,163.70-78,886.50-31,670.84

Finding the Fourth Proportional to 57,163.70, 78,886.50 and 31,670.84

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Solution

The fourth proportional to 57,163.70, 78,886.50 and 31,670.84 is: 43,706.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,163.70 : 78,886.50 = 31,670.84 : x
  2. Step 2: Convert to fraction form
    57,163.70/78,886.50 = 31,670.84/x
  3. Step 3: Cross multiply
    57,163.70x = 78,886.50 × 31,670.84
  4. Step 4: Simplify right side
    57,163.70x = 2,498,401,719.66
  5. Step 5: Solve for x
    x = 2,498,401,719.66/57,163.70
  6. Step 6: Final answer
    x = 43,706.09

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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.