Home / 54,129.46-81,347.01-31,953.28

Finding the Fourth Proportional to 54,129.46, 81,347.01 and 31,953.28

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Solution

The fourth proportional to 54,129.46, 81,347.01 and 31,953.28 is: 48,020.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,129.46 : 81,347.01 = 31,953.28 : x
  2. Step 2: Convert to fraction form
    54,129.46/81,347.01 = 31,953.28/x
  3. Step 3: Cross multiply
    54,129.46x = 81,347.01 × 31,953.28
  4. Step 4: Simplify right side
    54,129.46x = 2,599,303,787.69
  5. Step 5: Solve for x
    x = 2,599,303,787.69/54,129.46
  6. Step 6: Final answer
    x = 48,020.13

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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.