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Finding the Fourth Proportional to 74,882, 103,341.38 and 40,893.65

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Solution

The fourth proportional to 74,882, 103,341.38 and 40,893.65 is: 56,435.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,882 : 103,341.38 = 40,893.65 : x
  2. Step 2: Convert to fraction form
    74,882/103,341.38 = 40,893.65/x
  3. Step 3: Cross multiply
    74,882x = 103,341.38 × 40,893.65
  4. Step 4: Simplify right side
    74,882x = 4,226,006,224.24
  5. Step 5: Solve for x
    x = 4,226,006,224.24/74,882
  6. Step 6: Final answer
    x = 56,435.54

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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.