Home / 65,669.81-98,513.92-21,282.21

Finding the Fourth Proportional to 65,669.81, 98,513.92 and 21,282.21

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Solution

The fourth proportional to 65,669.81, 98,513.92 and 21,282.21 is: 31,926.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,669.81 : 98,513.92 = 21,282.21 : x
  2. Step 2: Convert to fraction form
    65,669.81/98,513.92 = 21,282.21/x
  3. Step 3: Cross multiply
    65,669.81x = 98,513.92 × 21,282.21
  4. Step 4: Simplify right side
    65,669.81x = 2,096,593,933.36
  5. Step 5: Solve for x
    x = 2,096,593,933.36/65,669.81
  6. Step 6: Final answer
    x = 31,926.30

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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.