Home / 82,281.12-113,504.04-55,377.60

Finding the Fourth Proportional to 82,281.12, 113,504.04 and 55,377.60

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Solution

The fourth proportional to 82,281.12, 113,504.04 and 55,377.60 is: 76,391.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,281.12 : 113,504.04 = 55,377.60 : x
  2. Step 2: Convert to fraction form
    82,281.12/113,504.04 = 55,377.60/x
  3. Step 3: Cross multiply
    82,281.12x = 113,504.04 × 55,377.60
  4. Step 4: Simplify right side
    82,281.12x = 6,285,581,325.50
  5. Step 5: Solve for x
    x = 6,285,581,325.50/82,281.12
  6. Step 6: Final answer
    x = 76,391.54

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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.