Home / 84,018.11-115,944.62-45,777.56

Finding the Fourth Proportional to 84,018.11, 115,944.62 and 45,777.56

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Solution

The fourth proportional to 84,018.11, 115,944.62 and 45,777.56 is: 63,172.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,018.11 : 115,944.62 = 45,777.56 : x
  2. Step 2: Convert to fraction form
    84,018.11/115,944.62 = 45,777.56/x
  3. Step 3: Cross multiply
    84,018.11x = 115,944.62 × 45,777.56
  4. Step 4: Simplify right side
    84,018.11x = 5,307,660,990.12
  5. Step 5: Solve for x
    x = 5,307,660,990.12/84,018.11
  6. Step 6: Final answer
    x = 63,172.82

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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.