Home / 56,489.43-77,956.25-30,998.33

Finding the Fourth Proportional to 56,489.43, 77,956.25 and 30,998.33

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Solution

The fourth proportional to 56,489.43, 77,956.25 and 30,998.33 is: 42,778.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,489.43 : 77,956.25 = 30,998.33 : x
  2. Step 2: Convert to fraction form
    56,489.43/77,956.25 = 30,998.33/x
  3. Step 3: Cross multiply
    56,489.43x = 77,956.25 × 30,998.33
  4. Step 4: Simplify right side
    56,489.43x = 2,416,513,018.29
  5. Step 5: Solve for x
    x = 2,416,513,018.29/56,489.43
  6. Step 6: Final answer
    x = 42,778.14

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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.