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Finding the Fourth Proportional to 69,126.66, 95,393.73 and 38,911.89

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Solution

The fourth proportional to 69,126.66, 95,393.73 and 38,911.89 is: 53,697.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,126.66 : 95,393.73 = 38,911.89 : x
  2. Step 2: Convert to fraction form
    69,126.66/95,393.73 = 38,911.89/x
  3. Step 3: Cross multiply
    69,126.66x = 95,393.73 × 38,911.89
  4. Step 4: Simplify right side
    69,126.66x = 3,711,950,328.45
  5. Step 5: Solve for x
    x = 3,711,950,328.45/69,126.66
  6. Step 6: Final answer
    x = 53,697.81

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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.