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Finding the Fourth Proportional to 68,339.69, 94,308.87 and 40,045.38

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Solution

The fourth proportional to 68,339.69, 94,308.87 and 40,045.38 is: 55,262.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,339.69 : 94,308.87 = 40,045.38 : x
  2. Step 2: Convert to fraction form
    68,339.69/94,308.87 = 40,045.38/x
  3. Step 3: Cross multiply
    68,339.69x = 94,308.87 × 40,045.38
  4. Step 4: Simplify right side
    68,339.69x = 3,776,634,536.52
  5. Step 5: Solve for x
    x = 3,776,634,536.52/68,339.69
  6. Step 6: Final answer
    x = 55,262.68

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1.5x scale

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.