Home / 71,313.51-98,414.09-39,483.55

Finding the Fourth Proportional to 71,313.51, 98,414.09 and 39,483.55

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Solution

The fourth proportional to 71,313.51, 98,414.09 and 39,483.55 is: 54,488.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,313.51 : 98,414.09 = 39,483.55 : x
  2. Step 2: Convert to fraction form
    71,313.51/98,414.09 = 39,483.55/x
  3. Step 3: Cross multiply
    71,313.51x = 98,414.09 × 39,483.55
  4. Step 4: Simplify right side
    71,313.51x = 3,885,737,716.88
  5. Step 5: Solve for x
    x = 3,885,737,716.88/71,313.51
  6. Step 6: Final answer
    x = 54,488.10

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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.