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Finding the Fourth Proportional to 69,228, 95,535.05 and 40,564.58

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Solution

The fourth proportional to 69,228, 95,535.05 and 40,564.58 is: 55,979.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,228 : 95,535.05 = 40,564.58 : x
  2. Step 2: Convert to fraction form
    69,228/95,535.05 = 40,564.58/x
  3. Step 3: Cross multiply
    69,228x = 95,535.05 × 40,564.58
  4. Step 4: Simplify right side
    69,228x = 3,875,338,498.03
  5. Step 5: Solve for x
    x = 3,875,338,498.03/69,228
  6. Step 6: Final answer
    x = 55,979.35

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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.