Home / 74,930.43-103,426.16-43,121.73

Finding the Fourth Proportional to 74,930.43, 103,426.16 and 43,121.73

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Solution

The fourth proportional to 74,930.43, 103,426.16 and 43,121.73 is: 59,520.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,930.43 : 103,426.16 = 43,121.73 : x
  2. Step 2: Convert to fraction form
    74,930.43/103,426.16 = 43,121.73/x
  3. Step 3: Cross multiply
    74,930.43x = 103,426.16 × 43,121.73
  4. Step 4: Simplify right side
    74,930.43x = 4,459,914,946.46
  5. Step 5: Solve for x
    x = 4,459,914,946.46/74,930.43
  6. Step 6: Final answer
    x = 59,520.74

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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.