Home / 82,499.40-123,749.10-29,910.60

Finding the Fourth Proportional to 82,499.40, 123,749.10 and 29,910.60

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Solution

The fourth proportional to 82,499.40, 123,749.10 and 29,910.60 is: 44,865.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,499.40 : 123,749.10 = 29,910.60 : x
  2. Step 2: Convert to fraction form
    82,499.40/123,749.10 = 29,910.60/x
  3. Step 3: Cross multiply
    82,499.40x = 123,749.10 × 29,910.60
  4. Step 4: Simplify right side
    82,499.40x = 3,701,409,830.46
  5. Step 5: Solve for x
    x = 3,701,409,830.46/82,499.40
  6. Step 6: Final answer
    x = 44,865.90

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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.