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Finding the Fourth Proportional to 86,668.56, 130,002.84 and 34,083.36

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Solution

The fourth proportional to 86,668.56, 130,002.84 and 34,083.36 is: 51,125.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,668.56 : 130,002.84 = 34,083.36 : x
  2. Step 2: Convert to fraction form
    86,668.56/130,002.84 = 34,083.36/x
  3. Step 3: Cross multiply
    86,668.56x = 130,002.84 × 34,083.36
  4. Step 4: Simplify right side
    86,668.56x = 4,430,933,596.74
  5. Step 5: Solve for x
    x = 4,430,933,596.74/86,668.56
  6. Step 6: Final answer
    x = 51,125.04

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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.