Home / 71,636.04-98,865.09-39,815.19

Finding the Fourth Proportional to 71,636.04, 98,865.09 and 39,815.19

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Solution

The fourth proportional to 71,636.04, 98,865.09 and 39,815.19 is: 54,949.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,636.04 : 98,865.09 = 39,815.19 : x
  2. Step 2: Convert to fraction form
    71,636.04/98,865.09 = 39,815.19/x
  3. Step 3: Cross multiply
    71,636.04x = 98,865.09 × 39,815.19
  4. Step 4: Simplify right side
    71,636.04x = 3,936,332,342.72
  5. Step 5: Solve for x
    x = 3,936,332,342.72/71,636.04
  6. Step 6: Final answer
    x = 54,949.05

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1.5x scale

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.