Home / 91,835.20-126,745.37-51,008.50

Finding the Fourth Proportional to 91,835.20, 126,745.37 and 51,008.50

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Solution

The fourth proportional to 91,835.20, 126,745.37 and 51,008.50 is: 70,398.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,835.20 : 126,745.37 = 51,008.50 : x
  2. Step 2: Convert to fraction form
    91,835.20/126,745.37 = 51,008.50/x
  3. Step 3: Cross multiply
    91,835.20x = 126,745.37 × 51,008.50
  4. Step 4: Simplify right side
    91,835.20x = 6,465,091,205.65
  5. Step 5: Solve for x
    x = 6,465,091,205.65/91,835.20
  6. Step 6: Final answer
    x = 70,398.84

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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.