Home / 90,821.21-125,361.11-58,555.87

Finding the Fourth Proportional to 90,821.21, 125,361.11 and 58,555.87

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Solution

The fourth proportional to 90,821.21, 125,361.11 and 58,555.87 is: 80,825.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,821.21 : 125,361.11 = 58,555.87 : x
  2. Step 2: Convert to fraction form
    90,821.21/125,361.11 = 58,555.87/x
  3. Step 3: Cross multiply
    90,821.21x = 125,361.11 × 58,555.87
  4. Step 4: Simplify right side
    90,821.21x = 7,340,628,860.22
  5. Step 5: Solve for x
    x = 7,340,628,860.22/90,821.21
  6. Step 6: Final answer
    x = 80,825.05

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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.