Home / 66,834.45-92,231.53-39,983.28

Finding the Fourth Proportional to 66,834.45, 92,231.53 and 39,983.28

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Solution

The fourth proportional to 66,834.45, 92,231.53 and 39,983.28 is: 55,176.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,834.45 : 92,231.53 = 39,983.28 : x
  2. Step 2: Convert to fraction form
    66,834.45/92,231.53 = 39,983.28/x
  3. Step 3: Cross multiply
    66,834.45x = 92,231.53 × 39,983.28
  4. Step 4: Simplify right side
    66,834.45x = 3,687,718,642.99
  5. Step 5: Solve for x
    x = 3,687,718,642.99/66,834.45
  6. Step 6: Final answer
    x = 55,176.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.