Home / 45,867.90-63,270.78-28,845.18

Finding the Fourth Proportional to 45,867.90, 63,270.78 and 28,845.18

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Solution

The fourth proportional to 45,867.90, 63,270.78 and 28,845.18 is: 39,789.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,867.90 : 63,270.78 = 28,845.18 : x
  2. Step 2: Convert to fraction form
    45,867.90/63,270.78 = 28,845.18/x
  3. Step 3: Cross multiply
    45,867.90x = 63,270.78 × 28,845.18
  4. Step 4: Simplify right side
    45,867.90x = 1,825,057,037.84
  5. Step 5: Solve for x
    x = 1,825,057,037.84/45,867.90
  6. Step 6: Final answer
    x = 39,789.42

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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.