Home / 53,777.13-80,633.30-31,579.89

Finding the Fourth Proportional to 53,777.13, 80,633.30 and 31,579.89

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Solution

The fourth proportional to 53,777.13, 80,633.30 and 31,579.89 is: 47,350.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,777.13 : 80,633.30 = 31,579.89 : x
  2. Step 2: Convert to fraction form
    53,777.13/80,633.30 = 31,579.89/x
  3. Step 3: Cross multiply
    53,777.13x = 80,633.30 × 31,579.89
  4. Step 4: Simplify right side
    53,777.13x = 2,546,390,586.44
  5. Step 5: Solve for x
    x = 2,546,390,586.44/53,777.13
  6. Step 6: Final answer
    x = 47,350.81

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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.