Home / 91,263.58-125,942.40-50,977.90

Finding the Fourth Proportional to 91,263.58, 125,942.40 and 50,977.90

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Solution

The fourth proportional to 91,263.58, 125,942.40 and 50,977.90 is: 70,348.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,263.58 : 125,942.40 = 50,977.90 : x
  2. Step 2: Convert to fraction form
    91,263.58/125,942.40 = 50,977.90/x
  3. Step 3: Cross multiply
    91,263.58x = 125,942.40 × 50,977.90
  4. Step 4: Simplify right side
    91,263.58x = 6,420,279,072.96
  5. Step 5: Solve for x
    x = 6,420,279,072.96/91,263.58
  6. Step 6: Final answer
    x = 70,348.75

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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.