Home / 69,429.78-95,812.38-39,215.01

Finding the Fourth Proportional to 69,429.78, 95,812.38 and 39,215.01

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Solution

The fourth proportional to 69,429.78, 95,812.38 and 39,215.01 is: 54,116.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,429.78 : 95,812.38 = 39,215.01 : x
  2. Step 2: Convert to fraction form
    69,429.78/95,812.38 = 39,215.01/x
  3. Step 3: Cross multiply
    69,429.78x = 95,812.38 × 39,215.01
  4. Step 4: Simplify right side
    69,429.78x = 3,757,283,439.82
  5. Step 5: Solve for x
    x = 3,757,283,439.82/69,429.78
  6. Step 6: Final answer
    x = 54,116.31

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1.5x scale

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.