Home / 87,550.28-120,818.64-49,826.60

Finding the Fourth Proportional to 87,550.28, 120,818.64 and 49,826.60

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Solution

The fourth proportional to 87,550.28, 120,818.64 and 49,826.60 is: 68,760.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,550.28 : 120,818.64 = 49,826.60 : x
  2. Step 2: Convert to fraction form
    87,550.28/120,818.64 = 49,826.60/x
  3. Step 3: Cross multiply
    87,550.28x = 120,818.64 × 49,826.60
  4. Step 4: Simplify right side
    87,550.28x = 6,019,982,047.82
  5. Step 5: Solve for x
    x = 6,019,982,047.82/87,550.28
  6. Step 6: Final answer
    x = 68,760.28

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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.