Home / 54,047.08-81,081.17-20,764.59

Finding the Fourth Proportional to 54,047.08, 81,081.17 and 20,764.59

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Solution

The fourth proportional to 54,047.08, 81,081.17 and 20,764.59 is: 31,150.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,047.08 : 81,081.17 = 20,764.59 : x
  2. Step 2: Convert to fraction form
    54,047.08/81,081.17 = 20,764.59/x
  3. Step 3: Cross multiply
    54,047.08x = 81,081.17 × 20,764.59
  4. Step 4: Simplify right side
    54,047.08x = 1,683,616,921.76
  5. Step 5: Solve for x
    x = 1,683,616,921.76/54,047.08
  6. Step 6: Final answer
    x = 31,150.93

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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.