Home / 71,185.06-98,240.34-39,356.92

Finding the Fourth Proportional to 71,185.06, 98,240.34 and 39,356.92

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Solution

The fourth proportional to 71,185.06, 98,240.34 and 39,356.92 is: 54,315.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,185.06 : 98,240.34 = 39,356.92 : x
  2. Step 2: Convert to fraction form
    71,185.06/98,240.34 = 39,356.92/x
  3. Step 3: Cross multiply
    71,185.06x = 98,240.34 × 39,356.92
  4. Step 4: Simplify right side
    71,185.06x = 3,866,437,202.15
  5. Step 5: Solve for x
    x = 3,866,437,202.15/71,185.06
  6. Step 6: Final answer
    x = 54,315.29

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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.