Home / 83,664.29-115,453.55-47,857.64

Finding the Fourth Proportional to 83,664.29, 115,453.55 and 47,857.64

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Solution

The fourth proportional to 83,664.29, 115,453.55 and 47,857.64 is: 66,041.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,664.29 : 115,453.55 = 47,857.64 : x
  2. Step 2: Convert to fraction form
    83,664.29/115,453.55 = 47,857.64/x
  3. Step 3: Cross multiply
    83,664.29x = 115,453.55 × 47,857.64
  4. Step 4: Simplify right side
    83,664.29x = 5,525,333,975.00
  5. Step 5: Solve for x
    x = 5,525,333,975.00/83,664.29
  6. Step 6: Final answer
    x = 66,041.72

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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.