Home / 55,631.21-83,457.74-20,571.17

Finding the Fourth Proportional to 55,631.21, 83,457.74 and 20,571.17

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Solution

The fourth proportional to 55,631.21, 83,457.74 and 20,571.17 is: 30,860.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,631.21 : 83,457.74 = 20,571.17 : x
  2. Step 2: Convert to fraction form
    55,631.21/83,457.74 = 20,571.17/x
  3. Step 3: Cross multiply
    55,631.21x = 83,457.74 × 20,571.17
  4. Step 4: Simplify right side
    55,631.21x = 1,716,822,991.50
  5. Step 5: Solve for x
    x = 1,716,822,991.50/55,631.21
  6. Step 6: Final answer
    x = 30,860.79

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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.