Home / 91,310.51-126,047.32-55,511.96

Finding the Fourth Proportional to 91,310.51, 126,047.32 and 55,511.96

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Solution

The fourth proportional to 91,310.51, 126,047.32 and 55,511.96 is: 76,630.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,310.51 : 126,047.32 = 55,511.96 : x
  2. Step 2: Convert to fraction form
    91,310.51/126,047.32 = 55,511.96/x
  3. Step 3: Cross multiply
    91,310.51x = 126,047.32 × 55,511.96
  4. Step 4: Simplify right side
    91,310.51x = 6,997,133,016.93
  5. Step 5: Solve for x
    x = 6,997,133,016.93/91,310.51
  6. Step 6: Final answer
    x = 76,630.09

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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.