Home / 83,618.73-115,396.25-47,317.37

Finding the Fourth Proportional to 83,618.73, 115,396.25 and 47,317.37

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Solution

The fourth proportional to 83,618.73, 115,396.25 and 47,317.37 is: 65,299.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,618.73 : 115,396.25 = 47,317.37 : x
  2. Step 2: Convert to fraction form
    83,618.73/115,396.25 = 47,317.37/x
  3. Step 3: Cross multiply
    83,618.73x = 115,396.25 × 47,317.37
  4. Step 4: Simplify right side
    83,618.73x = 5,460,246,244.29
  5. Step 5: Solve for x
    x = 5,460,246,244.29/83,618.73
  6. Step 6: Final answer
    x = 65,299.32

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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.