Home / 76,628.91-114,938.68-28,588.26

Finding the Fourth Proportional to 76,628.91, 114,938.68 and 28,588.26

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Solution

The fourth proportional to 76,628.91, 114,938.68 and 28,588.26 is: 42,880.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,628.91 : 114,938.68 = 28,588.26 : x
  2. Step 2: Convert to fraction form
    76,628.91/114,938.68 = 28,588.26/x
  3. Step 3: Cross multiply
    76,628.91x = 114,938.68 × 28,588.26
  4. Step 4: Simplify right side
    76,628.91x = 3,285,896,867.90
  5. Step 5: Solve for x
    x = 3,285,896,867.90/76,628.91
  6. Step 6: Final answer
    x = 42,880.64

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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.