Home / 53,410.46-80,115.59-20,137.99

Finding the Fourth Proportional to 53,410.46, 80,115.59 and 20,137.99

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Solution

The fourth proportional to 53,410.46, 80,115.59 and 20,137.99 is: 30,206.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,410.46 : 80,115.59 = 20,137.99 : x
  2. Step 2: Convert to fraction form
    53,410.46/80,115.59 = 20,137.99/x
  3. Step 3: Cross multiply
    53,410.46x = 80,115.59 × 20,137.99
  4. Step 4: Simplify right side
    53,410.46x = 1,613,366,950.26
  5. Step 5: Solve for x
    x = 1,613,366,950.26/53,410.46
  6. Step 6: Final answer
    x = 30,206.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.