Home / 74,573.13-102,910.73-40,581.61

Finding the Fourth Proportional to 74,573.13, 102,910.73 and 40,581.61

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Solution

The fourth proportional to 74,573.13, 102,910.73 and 40,581.61 is: 56,002.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,573.13 : 102,910.73 = 40,581.61 : x
  2. Step 2: Convert to fraction form
    74,573.13/102,910.73 = 40,581.61/x
  3. Step 3: Cross multiply
    74,573.13x = 102,910.73 × 40,581.61
  4. Step 4: Simplify right side
    74,573.13x = 4,176,283,109.68
  5. Step 5: Solve for x
    x = 4,176,283,109.68/74,573.13
  6. Step 6: Final answer
    x = 56,002.52

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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.