Home / 42,759.73-64,137.57-28,725.67

Finding the Fourth Proportional to 42,759.73, 64,137.57 and 28,725.67

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Solution

The fourth proportional to 42,759.73, 64,137.57 and 28,725.67 is: 43,087.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,759.73 : 64,137.57 = 28,725.67 : x
  2. Step 2: Convert to fraction form
    42,759.73/64,137.57 = 28,725.67/x
  3. Step 3: Cross multiply
    42,759.73x = 64,137.57 × 28,725.67
  4. Step 4: Simplify right side
    42,759.73x = 1,842,394,670.42
  5. Step 5: Solve for x
    x = 1,842,394,670.42/42,759.73
  6. Step 6: Final answer
    x = 43,087.14

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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.