Home / 81,958,029.21-113,097,639.78-45,286,238.25

Finding the Fourth Proportional to 81,958,029.21, 113,097,639.78 and 45,286,238.25

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Solution

The fourth proportional to 81,958,029.21, 113,097,639.78 and 45,286,238.25 is: 62,492,555.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,958,029.21 : 113,097,639.78 = 45,286,238.25 : x
  2. Step 2: Convert to fraction form
    81,958,029.21/113,097,639.78 = 45,286,238.25/x
  3. Step 3: Cross multiply
    81,958,029.21x = 113,097,639.78 × 45,286,238.25
  4. Step 4: Simplify right side
    81,958,029.21x = 5,121,766,660,589,758
  5. Step 5: Solve for x
    x = 5,121,766,660,589,758/81,958,029.21
  6. Step 6: Final answer
    x = 62,492,555.15

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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.