Home / 53,431.23-80,155.05-18,362.69

Finding the Fourth Proportional to 53,431.23, 80,155.05 and 18,362.69

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Solution

The fourth proportional to 53,431.23, 80,155.05 and 18,362.69 is: 27,546.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,431.23 : 80,155.05 = 18,362.69 : x
  2. Step 2: Convert to fraction form
    53,431.23/80,155.05 = 18,362.69/x
  3. Step 3: Cross multiply
    53,431.23x = 80,155.05 × 18,362.69
  4. Step 4: Simplify right side
    53,431.23x = 1,471,862,335.08
  5. Step 5: Solve for x
    x = 1,471,862,335.08/53,431.23
  6. Step 6: Final answer
    x = 27,546.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.