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Finding the Fourth Proportional to 86,245.44, 129,359.06 and 23,071.94

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Solution

The fourth proportional to 86,245.44, 129,359.06 and 23,071.94 is: 34,605.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,245.44 : 129,359.06 = 23,071.94 : x
  2. Step 2: Convert to fraction form
    86,245.44/129,359.06 = 23,071.94/x
  3. Step 3: Cross multiply
    86,245.44x = 129,359.06 × 23,071.94
  4. Step 4: Simplify right side
    86,245.44x = 2,984,564,470.78
  5. Step 5: Solve for x
    x = 2,984,564,470.78/86,245.44
  6. Step 6: Final answer
    x = 34,605.48

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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.