Home / 49,779.60-68,694.66-28,557.60

Finding the Fourth Proportional to 49,779.60, 68,694.66 and 28,557.60

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Solution

The fourth proportional to 49,779.60, 68,694.66 and 28,557.60 is: 39,408.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,779.60 : 68,694.66 = 28,557.60 : x
  2. Step 2: Convert to fraction form
    49,779.60/68,694.66 = 28,557.60/x
  3. Step 3: Cross multiply
    49,779.60x = 68,694.66 × 28,557.60
  4. Step 4: Simplify right side
    49,779.60x = 1,961,754,622.42
  5. Step 5: Solve for x
    x = 1,961,754,622.42/49,779.60
  6. Step 6: Final answer
    x = 39,408.81

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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.