Home / 51,636.96-71,262.36-28,977.30

Finding the Fourth Proportional to 51,636.96, 71,262.36 and 28,977.30

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Solution

The fourth proportional to 51,636.96, 71,262.36 and 28,977.30 is: 39,990.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,636.96 : 71,262.36 = 28,977.30 : x
  2. Step 2: Convert to fraction form
    51,636.96/71,262.36 = 28,977.30/x
  3. Step 3: Cross multiply
    51,636.96x = 71,262.36 × 28,977.30
  4. Step 4: Simplify right side
    51,636.96x = 2,064,990,784.43
  5. Step 5: Solve for x
    x = 2,064,990,784.43/51,636.96
  6. Step 6: Final answer
    x = 39,990.56

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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.