Home / 58,427.20-80,640.04-55,764.86

Finding the Fourth Proportional to 58,427.20, 80,640.04 and 55,764.86

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Solution

The fourth proportional to 58,427.20, 80,640.04 and 55,764.86 is: 76,965.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,427.20 : 80,640.04 = 55,764.86 : x
  2. Step 2: Convert to fraction form
    58,427.20/80,640.04 = 55,764.86/x
  3. Step 3: Cross multiply
    58,427.20x = 80,640.04 × 55,764.86
  4. Step 4: Simplify right side
    58,427.20x = 4,496,880,540.99
  5. Step 5: Solve for x
    x = 4,496,880,540.99/58,427.20
  6. Step 6: Final answer
    x = 76,965.53

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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.