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Finding the Fourth Proportional to 86,889.62, 130,245.42 and 49,369.62

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Solution

The fourth proportional to 86,889.62, 130,245.42 and 49,369.62 is: 74,003.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,889.62 : 130,245.42 = 49,369.62 : x
  2. Step 2: Convert to fraction form
    86,889.62/130,245.42 = 49,369.62/x
  3. Step 3: Cross multiply
    86,889.62x = 130,245.42 × 49,369.62
  4. Step 4: Simplify right side
    86,889.62x = 6,430,166,892.14
  5. Step 5: Solve for x
    x = 6,430,166,892.14/86,889.62
  6. Step 6: Final answer
    x = 74,003.86

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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.