Home / 69,313.20-103,896.90-39,667.20

Finding the Fourth Proportional to 69,313.20, 103,896.90 and 39,667.20

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Solution

The fourth proportional to 69,313.20, 103,896.90 and 39,667.20 is: 59,459.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,313.20 : 103,896.90 = 39,667.20 : x
  2. Step 2: Convert to fraction form
    69,313.20/103,896.90 = 39,667.20/x
  3. Step 3: Cross multiply
    69,313.20x = 103,896.90 × 39,667.20
  4. Step 4: Simplify right side
    69,313.20x = 4,121,299,111.68
  5. Step 5: Solve for x
    x = 4,121,299,111.68/69,313.20
  6. Step 6: Final answer
    x = 59,459.08

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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.