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Finding the Fourth Proportional to 74,699.52, 103,084.07 and 40,708.41

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Solution

The fourth proportional to 74,699.52, 103,084.07 and 40,708.41 is: 56,176.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,699.52 : 103,084.07 = 40,708.41 : x
  2. Step 2: Convert to fraction form
    74,699.52/103,084.07 = 40,708.41/x
  3. Step 3: Cross multiply
    74,699.52x = 103,084.07 × 40,708.41
  4. Step 4: Simplify right side
    74,699.52x = 4,196,388,382.49
  5. Step 5: Solve for x
    x = 4,196,388,382.49/74,699.52
  6. Step 6: Final answer
    x = 56,176.91

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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.