Home / 67,034.52-92,511.90-40,178.28

Finding the Fourth Proportional to 67,034.52, 92,511.90 and 40,178.28

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Solution

The fourth proportional to 67,034.52, 92,511.90 and 40,178.28 is: 55,448.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,034.52 : 92,511.90 = 40,178.28 : x
  2. Step 2: Convert to fraction form
    67,034.52/92,511.90 = 40,178.28/x
  3. Step 3: Cross multiply
    67,034.52x = 92,511.90 × 40,178.28
  4. Step 4: Simplify right side
    67,034.52x = 3,716,969,021.53
  5. Step 5: Solve for x
    x = 3,716,969,021.53/67,034.52
  6. Step 6: Final answer
    x = 55,448.58

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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.