Home / 54,120.56-81,146.45-47,470.41

Finding the Fourth Proportional to 54,120.56, 81,146.45 and 47,470.41

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Solution

The fourth proportional to 54,120.56, 81,146.45 and 47,470.41 is: 71,175.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,120.56 : 81,146.45 = 47,470.41 : x
  2. Step 2: Convert to fraction form
    54,120.56/81,146.45 = 47,470.41/x
  3. Step 3: Cross multiply
    54,120.56x = 81,146.45 × 47,470.41
  4. Step 4: Simplify right side
    54,120.56x = 3,852,055,014.19
  5. Step 5: Solve for x
    x = 3,852,055,014.19/54,120.56
  6. Step 6: Final answer
    x = 71,175.45

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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.