Home / 74,457.32-102,755.94-42,630.44

Finding the Fourth Proportional to 74,457.32, 102,755.94 and 42,630.44

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Solution

The fourth proportional to 74,457.32, 102,755.94 and 42,630.44 is: 58,832.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,457.32 : 102,755.94 = 42,630.44 : x
  2. Step 2: Convert to fraction form
    74,457.32/102,755.94 = 42,630.44/x
  3. Step 3: Cross multiply
    74,457.32x = 102,755.94 × 42,630.44
  4. Step 4: Simplify right side
    74,457.32x = 4,380,530,934.81
  5. Step 5: Solve for x
    x = 4,380,530,934.81/74,457.32
  6. Step 6: Final answer
    x = 58,832.78

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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.