Home / 57,636.43-86,457.30-21,621.49

Finding the Fourth Proportional to 57,636.43, 86,457.30 and 21,621.49

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Solution

The fourth proportional to 57,636.43, 86,457.30 and 21,621.49 is: 32,433.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,636.43 : 86,457.30 = 21,621.49 : x
  2. Step 2: Convert to fraction form
    57,636.43/86,457.30 = 21,621.49/x
  3. Step 3: Cross multiply
    57,636.43x = 86,457.30 × 21,621.49
  4. Step 4: Simplify right side
    57,636.43x = 1,869,335,647.38
  5. Step 5: Solve for x
    x = 1,869,335,647.38/57,636.43
  6. Step 6: Final answer
    x = 32,433.23

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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.