Home / 55,173.60-76,139.28-30,023.28

Finding the Fourth Proportional to 55,173.60, 76,139.28 and 30,023.28

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Solution

The fourth proportional to 55,173.60, 76,139.28 and 30,023.28 is: 41,431.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,173.60 : 76,139.28 = 30,023.28 : x
  2. Step 2: Convert to fraction form
    55,173.60/76,139.28 = 30,023.28/x
  3. Step 3: Cross multiply
    55,173.60x = 76,139.28 × 30,023.28
  4. Step 4: Simplify right side
    55,173.60x = 2,285,950,922.44
  5. Step 5: Solve for x
    x = 2,285,950,922.44/55,173.60
  6. Step 6: Final answer
    x = 41,431.97

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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.