Home / 53,722.30-80,555.10-18,171.40

Finding the Fourth Proportional to 53,722.30, 80,555.10 and 18,171.40

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Solution

The fourth proportional to 53,722.30, 80,555.10 and 18,171.40 is: 27,247.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,722.30 : 80,555.10 = 18,171.40 : x
  2. Step 2: Convert to fraction form
    53,722.30/80,555.10 = 18,171.40/x
  3. Step 3: Cross multiply
    53,722.30x = 80,555.10 × 18,171.40
  4. Step 4: Simplify right side
    53,722.30x = 1,463,798,944.14
  5. Step 5: Solve for x
    x = 1,463,798,944.14/53,722.30
  6. Step 6: Final answer
    x = 27,247.51

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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.