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Finding the Fourth Proportional to 76,952.80, 115,400.40 and 27,013.60

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Solution

The fourth proportional to 76,952.80, 115,400.40 and 27,013.60 is: 40,510.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,952.80 : 115,400.40 = 27,013.60 : x
  2. Step 2: Convert to fraction form
    76,952.80/115,400.40 = 27,013.60/x
  3. Step 3: Cross multiply
    76,952.80x = 115,400.40 × 27,013.60
  4. Step 4: Simplify right side
    76,952.80x = 3,117,380,245.44
  5. Step 5: Solve for x
    x = 3,117,380,245.44/76,952.80
  6. Step 6: Final answer
    x = 40,510.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.