Home / 81,418.65-122,148.63-34,025.55

Finding the Fourth Proportional to 81,418.65, 122,148.63 and 34,025.55

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Solution

The fourth proportional to 81,418.65, 122,148.63 and 34,025.55 is: 51,046.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,418.65 : 122,148.63 = 34,025.55 : x
  2. Step 2: Convert to fraction form
    81,418.65/122,148.63 = 34,025.55/x
  3. Step 3: Cross multiply
    81,418.65x = 122,148.63 × 34,025.55
  4. Step 4: Simplify right side
    81,418.65x = 4,156,174,317.50
  5. Step 5: Solve for x
    x = 4,156,174,317.50/81,418.65
  6. Step 6: Final answer
    x = 51,046.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.