Home / 78,991.04-109,007.66-43,181.04

Finding the Fourth Proportional to 78,991.04, 109,007.66 and 43,181.04

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Solution

The fourth proportional to 78,991.04, 109,007.66 and 43,181.04 is: 59,589.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,991.04 : 109,007.66 = 43,181.04 : x
  2. Step 2: Convert to fraction form
    78,991.04/109,007.66 = 43,181.04/x
  3. Step 3: Cross multiply
    78,991.04x = 109,007.66 × 43,181.04
  4. Step 4: Simplify right side
    78,991.04x = 4,707,064,126.77
  5. Step 5: Solve for x
    x = 4,707,064,126.77/78,991.04
  6. Step 6: Final answer
    x = 59,589.85

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1.5x scale

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.