Home / 53,885.16-80,857.51-20,609.96

Finding the Fourth Proportional to 53,885.16, 80,857.51 and 20,609.96

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Solution

The fourth proportional to 53,885.16, 80,857.51 and 20,609.96 is: 30,926.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,885.16 : 80,857.51 = 20,609.96 : x
  2. Step 2: Convert to fraction form
    53,885.16/80,857.51 = 20,609.96/x
  3. Step 3: Cross multiply
    53,885.16x = 80,857.51 × 20,609.96
  4. Step 4: Simplify right side
    53,885.16x = 1,666,469,590.99
  5. Step 5: Solve for x
    x = 1,666,469,590.99/53,885.16
  6. Step 6: Final answer
    x = 30,926.32

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1.5x scale

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.