Home / 87,348.12-120,539.79-49,622.37

Finding the Fourth Proportional to 87,348.12, 120,539.79 and 49,622.37

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Solution

The fourth proportional to 87,348.12, 120,539.79 and 49,622.37 is: 68,478.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,348.12 : 120,539.79 = 49,622.37 : x
  2. Step 2: Convert to fraction form
    87,348.12/120,539.79 = 49,622.37/x
  3. Step 3: Cross multiply
    87,348.12x = 120,539.79 × 49,622.37
  4. Step 4: Simplify right side
    87,348.12x = 5,981,470,059.10
  5. Step 5: Solve for x
    x = 5,981,470,059.10/87,348.12
  6. Step 6: Final answer
    x = 68,478.52

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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.