Home / 80,744.29-111,311.64-56,796.64

Finding the Fourth Proportional to 80,744.29, 111,311.64 and 56,796.64

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Solution

The fourth proportional to 80,744.29, 111,311.64 and 56,796.64 is: 78,298.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,744.29 : 111,311.64 = 56,796.64 : x
  2. Step 2: Convert to fraction form
    80,744.29/111,311.64 = 56,796.64/x
  3. Step 3: Cross multiply
    80,744.29x = 111,311.64 × 56,796.64
  4. Step 4: Simplify right side
    80,744.29x = 6,322,127,215.89
  5. Step 5: Solve for x
    x = 6,322,127,215.89/80,744.29
  6. Step 6: Final answer
    x = 78,298.13

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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.