Home / 86,945.00-119,981.81-51,137.21

Finding the Fourth Proportional to 86,945.00, 119,981.81 and 51,137.21

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Solution

The fourth proportional to 86,945.00, 119,981.81 and 51,137.21 is: 70,568.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,945.00 : 119,981.81 = 51,137.21 : x
  2. Step 2: Convert to fraction form
    86,945.00/119,981.81 = 51,137.21/x
  3. Step 3: Cross multiply
    86,945.00x = 119,981.81 × 51,137.21
  4. Step 4: Simplify right side
    86,945.00x = 6,135,534,158.56
  5. Step 5: Solve for x
    x = 6,135,534,158.56/86,945.00
  6. Step 6: Final answer
    x = 70,568.00

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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.