Home / 71,696.23-98,940.18-39,864.85

Finding the Fourth Proportional to 71,696.23, 98,940.18 and 39,864.85

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Solution

The fourth proportional to 71,696.23, 98,940.18 and 39,864.85 is: 55,013.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,696.23 : 98,940.18 = 39,864.85 : x
  2. Step 2: Convert to fraction form
    71,696.23/98,940.18 = 39,864.85/x
  3. Step 3: Cross multiply
    71,696.23x = 98,940.18 × 39,864.85
  4. Step 4: Simplify right side
    71,696.23x = 3,944,235,187.32
  5. Step 5: Solve for x
    x = 3,944,235,187.32/71,696.23
  6. Step 6: Final answer
    x = 55,013.15

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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.