Home / 82,728.30-114,161.76-45,002.55

Finding the Fourth Proportional to 82,728.30, 114,161.76 and 45,002.55

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Solution

The fourth proportional to 82,728.30, 114,161.76 and 45,002.55 is: 62,101.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,728.30 : 114,161.76 = 45,002.55 : x
  2. Step 2: Convert to fraction form
    82,728.30/114,161.76 = 45,002.55/x
  3. Step 3: Cross multiply
    82,728.30x = 114,161.76 × 45,002.55
  4. Step 4: Simplify right side
    82,728.30x = 5,137,570,312.49
  5. Step 5: Solve for x
    x = 5,137,570,312.49/82,728.30
  6. Step 6: Final answer
    x = 62,101.73

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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.