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Finding the Fourth Proportional to 91,584.92, 126,372.52 and 51,300.40

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Solution

The fourth proportional to 91,584.92, 126,372.52 and 51,300.40 is: 70,786.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,584.92 : 126,372.52 = 51,300.40 : x
  2. Step 2: Convert to fraction form
    91,584.92/126,372.52 = 51,300.40/x
  3. Step 3: Cross multiply
    91,584.92x = 126,372.52 × 51,300.40
  4. Step 4: Simplify right side
    91,584.92x = 6,482,960,825.01
  5. Step 5: Solve for x
    x = 6,482,960,825.01/91,584.92
  6. Step 6: Final answer
    x = 70,786.33

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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.