Home / 87,674.59-120,990.13-53,742.07

Finding the Fourth Proportional to 87,674.59, 120,990.13 and 53,742.07

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Solution

The fourth proportional to 87,674.59, 120,990.13 and 53,742.07 is: 74,163.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,674.59 : 120,990.13 = 53,742.07 : x
  2. Step 2: Convert to fraction form
    87,674.59/120,990.13 = 53,742.07/x
  3. Step 3: Cross multiply
    87,674.59x = 120,990.13 × 53,742.07
  4. Step 4: Simplify right side
    87,674.59x = 6,502,260,035.77
  5. Step 5: Solve for x
    x = 6,502,260,035.77/87,674.59
  6. Step 6: Final answer
    x = 74,163.56

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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.