Home / 91,813.07-126,704.31-51,529.91

Finding the Fourth Proportional to 91,813.07, 126,704.31 and 51,529.91

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Solution

The fourth proportional to 91,813.07, 126,704.31 and 51,529.91 is: 71,112.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,813.07 : 126,704.31 = 51,529.91 : x
  2. Step 2: Convert to fraction form
    91,813.07/126,704.31 = 51,529.91/x
  3. Step 3: Cross multiply
    91,813.07x = 126,704.31 × 51,529.91
  4. Step 4: Simplify right side
    91,813.07x = 6,529,061,057.39
  5. Step 5: Solve for x
    x = 6,529,061,057.39/91,813.07
  6. Step 6: Final answer
    x = 71,112.54

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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.