Home / 86,664.70-129,971.20-36,743.98

Finding the Fourth Proportional to 86,664.70, 129,971.20 and 36,743.98

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Solution

The fourth proportional to 86,664.70, 129,971.20 and 36,743.98 is: 55,105.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,664.70 : 129,971.20 = 36,743.98 : x
  2. Step 2: Convert to fraction form
    86,664.70/129,971.20 = 36,743.98/x
  3. Step 3: Cross multiply
    86,664.70x = 129,971.20 × 36,743.98
  4. Step 4: Simplify right side
    86,664.70x = 4,775,659,173.38
  5. Step 5: Solve for x
    x = 4,775,659,173.38/86,664.70
  6. Step 6: Final answer
    x = 55,105.01

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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.