Home / 103,628.40-155,435.85-27,725.91

Finding the Fourth Proportional to 103,628.40, 155,435.85 and 27,725.91

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Solution

The fourth proportional to 103,628.40, 155,435.85 and 27,725.91 is: 41,587.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,628.40 : 155,435.85 = 27,725.91 : x
  2. Step 2: Convert to fraction form
    103,628.40/155,435.85 = 27,725.91/x
  3. Step 3: Cross multiply
    103,628.40x = 155,435.85 × 27,725.91
  4. Step 4: Simplify right side
    103,628.40x = 4,309,600,387.87
  5. Step 5: Solve for x
    x = 4,309,600,387.87/103,628.40
  6. Step 6: Final answer
    x = 41,587.06

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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.