Home / 45,239.14-67,857.90-18,579.34

Finding the Fourth Proportional to 45,239.14, 67,857.90 and 18,579.34

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Solution

The fourth proportional to 45,239.14, 67,857.90 and 18,579.34 is: 27,868.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,239.14 : 67,857.90 = 18,579.34 : x
  2. Step 2: Convert to fraction form
    45,239.14/67,857.90 = 18,579.34/x
  3. Step 3: Cross multiply
    45,239.14x = 67,857.90 × 18,579.34
  4. Step 4: Simplify right side
    45,239.14x = 1,260,754,995.79
  5. Step 5: Solve for x
    x = 1,260,754,995.79/45,239.14
  6. Step 6: Final answer
    x = 27,868.68

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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.