Home / 88,431.42-122,021.60-50,698.38

Finding the Fourth Proportional to 88,431.42, 122,021.60 and 50,698.38

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Solution

The fourth proportional to 88,431.42, 122,021.60 and 50,698.38 is: 69,955.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,431.42 : 122,021.60 = 50,698.38 : x
  2. Step 2: Convert to fraction form
    88,431.42/122,021.60 = 50,698.38/x
  3. Step 3: Cross multiply
    88,431.42x = 122,021.60 × 50,698.38
  4. Step 4: Simplify right side
    88,431.42x = 6,186,296,961.65
  5. Step 5: Solve for x
    x = 6,186,296,961.65/88,431.42
  6. Step 6: Final answer
    x = 69,955.87

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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.