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Finding the Fourth Proportional to 41,107.70, 61,661.55 and 27,985.70

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Solution

The fourth proportional to 41,107.70, 61,661.55 and 27,985.70 is: 41,978.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,107.70 : 61,661.55 = 27,985.70 : x
  2. Step 2: Convert to fraction form
    41,107.70/61,661.55 = 27,985.70/x
  3. Step 3: Cross multiply
    41,107.70x = 61,661.55 × 27,985.70
  4. Step 4: Simplify right side
    41,107.70x = 1,725,641,639.84
  5. Step 5: Solve for x
    x = 1,725,641,639.84/41,107.70
  6. Step 6: Final answer
    x = 41,978.55

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1.5x scale

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.