Home / 82,501.60-123,811.40-35,149.86

Finding the Fourth Proportional to 82,501.60, 123,811.40 and 35,149.86

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Solution

The fourth proportional to 82,501.60, 123,811.40 and 35,149.86 is: 52,749.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,501.60 : 123,811.40 = 35,149.86 : x
  2. Step 2: Convert to fraction form
    82,501.60/123,811.40 = 35,149.86/x
  3. Step 3: Cross multiply
    82,501.60x = 123,811.40 × 35,149.86
  4. Step 4: Simplify right side
    82,501.60x = 4,351,952,581.60
  5. Step 5: Solve for x
    x = 4,351,952,581.60/82,501.60
  6. Step 6: Final answer
    x = 52,749.92

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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.