Home / 55,282.12-82,940.72-19,742.69

Finding the Fourth Proportional to 55,282.12, 82,940.72 and 19,742.69

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Solution

The fourth proportional to 55,282.12, 82,940.72 and 19,742.69 is: 29,620.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,282.12 : 82,940.72 = 19,742.69 : x
  2. Step 2: Convert to fraction form
    55,282.12/82,940.72 = 19,742.69/x
  3. Step 3: Cross multiply
    55,282.12x = 82,940.72 × 19,742.69
  4. Step 4: Simplify right side
    55,282.12x = 1,637,472,459.28
  5. Step 5: Solve for x
    x = 1,637,472,459.28/55,282.12
  6. Step 6: Final answer
    x = 29,620.29

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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.