Home / 80,564.85-111,182.64-55,124.57

Finding the Fourth Proportional to 80,564.85, 111,182.64 and 55,124.57

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Solution

The fourth proportional to 80,564.85, 111,182.64 and 55,124.57 is: 76,074.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,564.85 : 111,182.64 = 55,124.57 : x
  2. Step 2: Convert to fraction form
    80,564.85/111,182.64 = 55,124.57/x
  3. Step 3: Cross multiply
    80,564.85x = 111,182.64 × 55,124.57
  4. Step 4: Simplify right side
    80,564.85x = 6,128,895,221.46
  5. Step 5: Solve for x
    x = 6,128,895,221.46/80,564.85
  6. Step 6: Final answer
    x = 76,074.06

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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.