Home / 56,217.24-77,581.40-30,725.02

Finding the Fourth Proportional to 56,217.24, 77,581.40 and 30,725.02

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Solution

The fourth proportional to 56,217.24, 77,581.40 and 30,725.02 is: 42,401.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,217.24 : 77,581.40 = 30,725.02 : x
  2. Step 2: Convert to fraction form
    56,217.24/77,581.40 = 30,725.02/x
  3. Step 3: Cross multiply
    56,217.24x = 77,581.40 × 30,725.02
  4. Step 4: Simplify right side
    56,217.24x = 2,383,690,009.98
  5. Step 5: Solve for x
    x = 2,383,690,009.98/56,217.24
  6. Step 6: Final answer
    x = 42,401.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.