Home / 54,601.12-81,921.04-31,247.20

Finding the Fourth Proportional to 54,601.12, 81,921.04 and 31,247.20

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Solution

The fourth proportional to 54,601.12, 81,921.04 and 31,247.20 is: 46,881.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,601.12 : 81,921.04 = 31,247.20 : x
  2. Step 2: Convert to fraction form
    54,601.12/81,921.04 = 31,247.20/x
  3. Step 3: Cross multiply
    54,601.12x = 81,921.04 × 31,247.20
  4. Step 4: Simplify right side
    54,601.12x = 2,559,803,121.09
  5. Step 5: Solve for x
    x = 2,559,803,121.09/54,601.12
  6. Step 6: Final answer
    x = 46,881.88

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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.