Home / 65,711.13-98,636.87-28,289.76

Finding the Fourth Proportional to 65,711.13, 98,636.87 and 28,289.76

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Solution

The fourth proportional to 65,711.13, 98,636.87 and 28,289.76 is: 42,464.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,711.13 : 98,636.87 = 28,289.76 : x
  2. Step 2: Convert to fraction form
    65,711.13/98,636.87 = 28,289.76/x
  3. Step 3: Cross multiply
    65,711.13x = 98,636.87 × 28,289.76
  4. Step 4: Simplify right side
    65,711.13x = 2,790,413,379.45
  5. Step 5: Solve for x
    x = 2,790,413,379.45/65,711.13
  6. Step 6: Final answer
    x = 42,464.85

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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.