Home / 54,451.42-81,211.37-47,831.29

Finding the Fourth Proportional to 54,451.42, 81,211.37 and 47,831.29

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Solution

The fourth proportional to 54,451.42, 81,211.37 and 47,831.29 is: 71,337.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,451.42 : 81,211.37 = 47,831.29 : x
  2. Step 2: Convert to fraction form
    54,451.42/81,211.37 = 47,831.29/x
  3. Step 3: Cross multiply
    54,451.42x = 81,211.37 × 47,831.29
  4. Step 4: Simplify right side
    54,451.42x = 3,884,444,147.58
  5. Step 5: Solve for x
    x = 3,884,444,147.58/54,451.42
  6. Step 6: Final answer
    x = 71,337.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.