Home / 87,206.01-120,313.26-57,008.67

Finding the Fourth Proportional to 87,206.01, 120,313.26 and 57,008.67

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Solution

The fourth proportional to 87,206.01, 120,313.26 and 57,008.67 is: 78,651.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,206.01 : 120,313.26 = 57,008.67 : x
  2. Step 2: Convert to fraction form
    87,206.01/120,313.26 = 57,008.67/x
  3. Step 3: Cross multiply
    87,206.01x = 120,313.26 × 57,008.67
  4. Step 4: Simplify right side
    87,206.01x = 6,858,898,935.96
  5. Step 5: Solve for x
    x = 6,858,898,935.96/87,206.01
  6. Step 6: Final answer
    x = 78,651.68

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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.