Home / 56,119.94-77,447.38-30,627.70

Finding the Fourth Proportional to 56,119.94, 77,447.38 and 30,627.70

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Solution

The fourth proportional to 56,119.94, 77,447.38 and 30,627.70 is: 42,267.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,119.94 : 77,447.38 = 30,627.70 : x
  2. Step 2: Convert to fraction form
    56,119.94/77,447.38 = 30,627.70/x
  3. Step 3: Cross multiply
    56,119.94x = 77,447.38 × 30,627.70
  4. Step 4: Simplify right side
    56,119.94x = 2,372,035,120.43
  5. Step 5: Solve for x
    x = 2,372,035,120.43/56,119.94
  6. Step 6: Final answer
    x = 42,267.24

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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.