Home / 79,301.18-109,433.12-43,490.54

Finding the Fourth Proportional to 79,301.18, 109,433.12 and 43,490.54

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Solution

The fourth proportional to 79,301.18, 109,433.12 and 43,490.54 is: 60,015.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,301.18 : 109,433.12 = 43,490.54 : x
  2. Step 2: Convert to fraction form
    79,301.18/109,433.12 = 43,490.54/x
  3. Step 3: Cross multiply
    79,301.18x = 109,433.12 × 43,490.54
  4. Step 4: Simplify right side
    79,301.18x = 4,759,305,482.68
  5. Step 5: Solve for x
    x = 4,759,305,482.68/79,301.18
  6. Step 6: Final answer
    x = 60,015.57

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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.