Home / 52,739.15-72,777.22-28,861.21

Finding the Fourth Proportional to 52,739.15, 72,777.22 and 28,861.21

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Solution

The fourth proportional to 52,739.15, 72,777.22 and 28,861.21 is: 39,826.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,739.15 : 72,777.22 = 28,861.21 : x
  2. Step 2: Convert to fraction form
    52,739.15/72,777.22 = 28,861.21/x
  3. Step 3: Cross multiply
    52,739.15x = 72,777.22 × 28,861.21
  4. Step 4: Simplify right side
    52,739.15x = 2,100,438,121.44
  5. Step 5: Solve for x
    x = 2,100,438,121.44/52,739.15
  6. Step 6: Final answer
    x = 39,826.93

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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.