Home / 55,921.43-77,169.26-30,427.90

Finding the Fourth Proportional to 55,921.43, 77,169.26 and 30,427.90

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Solution

The fourth proportional to 55,921.43, 77,169.26 and 30,427.90 is: 41,989.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,921.43 : 77,169.26 = 30,427.90 : x
  2. Step 2: Convert to fraction form
    55,921.43/77,169.26 = 30,427.90/x
  3. Step 3: Cross multiply
    55,921.43x = 77,169.26 × 30,427.90
  4. Step 4: Simplify right side
    55,921.43x = 2,348,098,409.50
  5. Step 5: Solve for x
    x = 2,348,098,409.50/55,921.43
  6. Step 6: Final answer
    x = 41,989.24

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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.