Home / 54,621.09-81,931.59-31,231.11

Finding the Fourth Proportional to 54,621.09, 81,931.59 and 31,231.11

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Solution

The fourth proportional to 54,621.09, 81,931.59 and 31,231.11 is: 46,846.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,621.09 : 81,931.59 = 31,231.11 : x
  2. Step 2: Convert to fraction form
    54,621.09/81,931.59 = 31,231.11/x
  3. Step 3: Cross multiply
    54,621.09x = 81,931.59 × 31,231.11
  4. Step 4: Simplify right side
    54,621.09x = 2,558,814,499.76
  5. Step 5: Solve for x
    x = 2,558,814,499.76/54,621.09
  6. Step 6: Final answer
    x = 46,846.64

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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.