Home / 87,036.14-120,109.74-49,310.30

Finding the Fourth Proportional to 87,036.14, 120,109.74 and 49,310.30

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Solution

The fourth proportional to 87,036.14, 120,109.74 and 49,310.30 is: 68,048.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,036.14 : 120,109.74 = 49,310.30 : x
  2. Step 2: Convert to fraction form
    87,036.14/120,109.74 = 49,310.30/x
  3. Step 3: Cross multiply
    87,036.14x = 120,109.74 × 49,310.30
  4. Step 4: Simplify right side
    87,036.14x = 5,922,647,312.32
  5. Step 5: Solve for x
    x = 5,922,647,312.32/87,036.14
  6. Step 6: Final answer
    x = 68,048.14

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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.