Home / 86,815.98-130,233.51-27,630.90

Finding the Fourth Proportional to 86,815.98, 130,233.51 and 27,630.90

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Solution

The fourth proportional to 86,815.98, 130,233.51 and 27,630.90 is: 41,449.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,815.98 : 130,233.51 = 27,630.90 : x
  2. Step 2: Convert to fraction form
    86,815.98/130,233.51 = 27,630.90/x
  3. Step 3: Cross multiply
    86,815.98x = 130,233.51 × 27,630.90
  4. Step 4: Simplify right side
    86,815.98x = 3,598,469,091.46
  5. Step 5: Solve for x
    x = 3,598,469,091.46/86,815.98
  6. Step 6: Final answer
    x = 41,449.39

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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.