Home / 91,043.27-125,630.64-55,231.15

Finding the Fourth Proportional to 91,043.27, 125,630.64 and 55,231.15

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Solution

The fourth proportional to 91,043.27, 125,630.64 and 55,231.15 is: 76,213.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,043.27 : 125,630.64 = 55,231.15 : x
  2. Step 2: Convert to fraction form
    91,043.27/125,630.64 = 55,231.15/x
  3. Step 3: Cross multiply
    91,043.27x = 125,630.64 × 55,231.15
  4. Step 4: Simplify right side
    91,043.27x = 6,938,724,722.44
  5. Step 5: Solve for x
    x = 6,938,724,722.44/91,043.27
  6. Step 6: Final answer
    x = 76,213.48

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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.