Home / 54,481.11-75,190.95-30,607.81

Finding the Fourth Proportional to 54,481.11, 75,190.95 and 30,607.81

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Solution

The fourth proportional to 54,481.11, 75,190.95 and 30,607.81 is: 42,242.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,481.11 : 75,190.95 = 30,607.81 : x
  2. Step 2: Convert to fraction form
    54,481.11/75,190.95 = 30,607.81/x
  3. Step 3: Cross multiply
    54,481.11x = 75,190.95 × 30,607.81
  4. Step 4: Simplify right side
    54,481.11x = 2,301,430,311.32
  5. Step 5: Solve for x
    x = 2,301,430,311.32/54,481.11
  6. Step 6: Final answer
    x = 42,242.72

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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.