Home / 56,011.28-84,031.25-18,581.79

Finding the Fourth Proportional to 56,011.28, 84,031.25 and 18,581.79

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Solution

The fourth proportional to 56,011.28, 84,031.25 and 18,581.79 is: 27,877.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,011.28 : 84,031.25 = 18,581.79 : x
  2. Step 2: Convert to fraction form
    56,011.28/84,031.25 = 18,581.79/x
  3. Step 3: Cross multiply
    56,011.28x = 84,031.25 × 18,581.79
  4. Step 4: Simplify right side
    56,011.28x = 1,561,450,948.03
  5. Step 5: Solve for x
    x = 1,561,450,948.03/56,011.28
  6. Step 6: Final answer
    x = 27,877.44

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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.