Home / 91,800.87-126,684.01-51,515.43

Finding the Fourth Proportional to 91,800.87, 126,684.01 and 51,515.43

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Solution

The fourth proportional to 91,800.87, 126,684.01 and 51,515.43 is: 71,090.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,800.87 : 126,684.01 = 51,515.43 : x
  2. Step 2: Convert to fraction form
    91,800.87/126,684.01 = 51,515.43/x
  3. Step 3: Cross multiply
    91,800.87x = 126,684.01 × 51,515.43
  4. Step 4: Simplify right side
    91,800.87x = 6,526,181,249.27
  5. Step 5: Solve for x
    x = 6,526,181,249.27/91,800.87
  6. Step 6: Final answer
    x = 71,090.63

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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.