Home / 87,080.38-120,059.68-56,399.27

Finding the Fourth Proportional to 87,080.38, 120,059.68 and 56,399.27

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Solution

The fourth proportional to 87,080.38, 120,059.68 and 56,399.27 is: 77,758.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,080.38 : 120,059.68 = 56,399.27 : x
  2. Step 2: Convert to fraction form
    87,080.38/120,059.68 = 56,399.27/x
  3. Step 3: Cross multiply
    87,080.38x = 120,059.68 × 56,399.27
  4. Step 4: Simplify right side
    87,080.38x = 6,771,277,567.14
  5. Step 5: Solve for x
    x = 6,771,277,567.14/87,080.38
  6. Step 6: Final answer
    x = 77,758.94

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1.5x scale

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.