Home / 79,385.64-109,554.48-43,577.97

Finding the Fourth Proportional to 79,385.64, 109,554.48 and 43,577.97

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Solution

The fourth proportional to 79,385.64, 109,554.48 and 43,577.97 is: 60,138.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,385.64 : 109,554.48 = 43,577.97 : x
  2. Step 2: Convert to fraction form
    79,385.64/109,554.48 = 43,577.97/x
  3. Step 3: Cross multiply
    79,385.64x = 109,554.48 × 43,577.97
  4. Step 4: Simplify right side
    79,385.64x = 4,774,161,842.81
  5. Step 5: Solve for x
    x = 4,774,161,842.81/79,385.64
  6. Step 6: Final answer
    x = 60,138.86

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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.