Home / 87,555.64-120,826.68-51,758.56

Finding the Fourth Proportional to 87,555.64, 120,826.68 and 51,758.56

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Solution

The fourth proportional to 87,555.64, 120,826.68 and 51,758.56 is: 71,426.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,555.64 : 120,826.68 = 51,758.56 : x
  2. Step 2: Convert to fraction form
    87,555.64/120,826.68 = 51,758.56/x
  3. Step 3: Cross multiply
    87,555.64x = 120,826.68 × 51,758.56
  4. Step 4: Simplify right side
    87,555.64x = 6,253,814,966.38
  5. Step 5: Solve for x
    x = 6,253,814,966.38/87,555.64
  6. Step 6: Final answer
    x = 71,426.75

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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.