Home / 91,986.72-126,942.03-51,702.18

Finding the Fourth Proportional to 91,986.72, 126,942.03 and 51,702.18

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Solution

The fourth proportional to 91,986.72, 126,942.03 and 51,702.18 is: 71,349.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,986.72 : 126,942.03 = 51,702.18 : x
  2. Step 2: Convert to fraction form
    91,986.72/126,942.03 = 51,702.18/x
  3. Step 3: Cross multiply
    91,986.72x = 126,942.03 × 51,702.18
  4. Step 4: Simplify right side
    91,986.72x = 6,563,179,684.63
  5. Step 5: Solve for x
    x = 6,563,179,684.63/91,986.72
  6. Step 6: Final answer
    x = 71,349.21

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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.