Home / 69,215.12-103,725.24-39,588.56

Finding the Fourth Proportional to 69,215.12, 103,725.24 and 39,588.56

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Solution

The fourth proportional to 69,215.12, 103,725.24 and 39,588.56 is: 59,327.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,215.12 : 103,725.24 = 39,588.56 : x
  2. Step 2: Convert to fraction form
    69,215.12/103,725.24 = 39,588.56/x
  3. Step 3: Cross multiply
    69,215.12x = 103,725.24 × 39,588.56
  4. Step 4: Simplify right side
    69,215.12x = 4,106,332,887.25
  5. Step 5: Solve for x
    x = 4,106,332,887.25/69,215.12
  6. Step 6: Final answer
    x = 59,327.11

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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.