Home / 91,303.92-136,977.66-28,974.42

Finding the Fourth Proportional to 91,303.92, 136,977.66 and 28,974.42

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Solution

The fourth proportional to 91,303.92, 136,977.66 and 28,974.42 is: 43,468.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,303.92 : 136,977.66 = 28,974.42 : x
  2. Step 2: Convert to fraction form
    91,303.92/136,977.66 = 28,974.42/x
  3. Step 3: Cross multiply
    91,303.92x = 136,977.66 × 28,974.42
  4. Step 4: Simplify right side
    91,303.92x = 3,968,848,251.46
  5. Step 5: Solve for x
    x = 3,968,848,251.46/91,303.92
  6. Step 6: Final answer
    x = 43,468.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.