Home / 55,288.91-76,298.74-30,138.41

Finding the Fourth Proportional to 55,288.91, 76,298.74 and 30,138.41

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Solution

The fourth proportional to 55,288.91, 76,298.74 and 30,138.41 is: 41,591.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,288.91 : 76,298.74 = 30,138.41 : x
  2. Step 2: Convert to fraction form
    55,288.91/76,298.74 = 30,138.41/x
  3. Step 3: Cross multiply
    55,288.91x = 76,298.74 × 30,138.41
  4. Step 4: Simplify right side
    55,288.91x = 2,299,522,327.11
  5. Step 5: Solve for x
    x = 2,299,522,327.11/55,288.91
  6. Step 6: Final answer
    x = 41,591.03

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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.