Home / 55,489.92-76,581.36-30,343.20

Finding the Fourth Proportional to 55,489.92, 76,581.36 and 30,343.20

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Solution

The fourth proportional to 55,489.92, 76,581.36 and 30,343.20 is: 41,876.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,489.92 : 76,581.36 = 30,343.20 : x
  2. Step 2: Convert to fraction form
    55,489.92/76,581.36 = 30,343.20/x
  3. Step 3: Cross multiply
    55,489.92x = 76,581.36 × 30,343.20
  4. Step 4: Simplify right side
    55,489.92x = 2,323,723,522.75
  5. Step 5: Solve for x
    x = 2,323,723,522.75/55,489.92
  6. Step 6: Final answer
    x = 41,876.50

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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.