Home / 55,145.28-82,668.48-21,842.88

Finding the Fourth Proportional to 55,145.28, 82,668.48 and 21,842.88

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Solution

The fourth proportional to 55,145.28, 82,668.48 and 21,842.88 is: 32,744.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,145.28 : 82,668.48 = 21,842.88 : x
  2. Step 2: Convert to fraction form
    55,145.28/82,668.48 = 21,842.88/x
  3. Step 3: Cross multiply
    55,145.28x = 82,668.48 × 21,842.88
  4. Step 4: Simplify right side
    55,145.28x = 1,805,717,688.42
  5. Step 5: Solve for x
    x = 1,805,717,688.42/55,145.28
  6. Step 6: Final answer
    x = 32,744.74

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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.