Home / 87,191.45-120,360.76-58,935.41

Finding the Fourth Proportional to 87,191.45, 120,360.76 and 58,935.41

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Solution

The fourth proportional to 87,191.45, 120,360.76 and 58,935.41 is: 81,355.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,191.45 : 120,360.76 = 58,935.41 : x
  2. Step 2: Convert to fraction form
    87,191.45/120,360.76 = 58,935.41/x
  3. Step 3: Cross multiply
    87,191.45x = 120,360.76 × 58,935.41
  4. Step 4: Simplify right side
    87,191.45x = 7,093,509,989.37
  5. Step 5: Solve for x
    x = 7,093,509,989.37/87,191.45
  6. Step 6: Final answer
    x = 81,355.57

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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.