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Finding the Fourth Proportional to 86,952.98, 119,729.39 and 65,473.91

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Solution

The fourth proportional to 86,952.98, 119,729.39 and 65,473.91 is: 90,153.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,952.98 : 119,729.39 = 65,473.91 : x
  2. Step 2: Convert to fraction form
    86,952.98/119,729.39 = 65,473.91/x
  3. Step 3: Cross multiply
    86,952.98x = 119,729.39 × 65,473.91
  4. Step 4: Simplify right side
    86,952.98x = 7,839,150,379.20
  5. Step 5: Solve for x
    x = 7,839,150,379.20/86,952.98
  6. Step 6: Final answer
    x = 90,153.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.