Home / 56,217.42-77,581.07-30,724.87

Finding the Fourth Proportional to 56,217.42, 77,581.07 and 30,724.87

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Solution

The fourth proportional to 56,217.42, 77,581.07 and 30,724.87 is: 42,400.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,217.42 : 77,581.07 = 30,724.87 : x
  2. Step 2: Convert to fraction form
    56,217.42/77,581.07 = 30,724.87/x
  3. Step 3: Cross multiply
    56,217.42x = 77,581.07 × 30,724.87
  4. Step 4: Simplify right side
    56,217.42x = 2,383,668,290.21
  5. Step 5: Solve for x
    x = 2,383,668,290.21/56,217.42
  6. Step 6: Final answer
    x = 42,400.88

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1.5x scale

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.