Home / 55,429.70-76,487.96-31,234.60

Finding the Fourth Proportional to 55,429.70, 76,487.96 and 31,234.60

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Solution

The fourth proportional to 55,429.70, 76,487.96 and 31,234.60 is: 43,100.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,429.70 : 76,487.96 = 31,234.60 : x
  2. Step 2: Convert to fraction form
    55,429.70/76,487.96 = 31,234.60/x
  3. Step 3: Cross multiply
    55,429.70x = 76,487.96 × 31,234.60
  4. Step 4: Simplify right side
    55,429.70x = 2,389,070,835.42
  5. Step 5: Solve for x
    x = 2,389,070,835.42/55,429.70
  6. Step 6: Final answer
    x = 43,100.92

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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.