Home / 87,070.73-120,158.96-50,771.21

Finding the Fourth Proportional to 87,070.73, 120,158.96 and 50,771.21

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Solution

The fourth proportional to 87,070.73, 120,158.96 and 50,771.21 is: 70,065.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,070.73 : 120,158.96 = 50,771.21 : x
  2. Step 2: Convert to fraction form
    87,070.73/120,158.96 = 50,771.21/x
  3. Step 3: Cross multiply
    87,070.73x = 120,158.96 × 50,771.21
  4. Step 4: Simplify right side
    87,070.73x = 6,100,614,936.89
  5. Step 5: Solve for x
    x = 6,100,614,936.89/87,070.73
  6. Step 6: Final answer
    x = 70,065.05

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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.