Home / 54,272.32-81,420.18-16,831.65

Finding the Fourth Proportional to 54,272.32, 81,420.18 and 16,831.65

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Solution

The fourth proportional to 54,272.32, 81,420.18 and 16,831.65 is: 25,251.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,272.32 : 81,420.18 = 16,831.65 : x
  2. Step 2: Convert to fraction form
    54,272.32/81,420.18 = 16,831.65/x
  3. Step 3: Cross multiply
    54,272.32x = 81,420.18 × 16,831.65
  4. Step 4: Simplify right side
    54,272.32x = 1,370,435,565.60
  5. Step 5: Solve for x
    x = 1,370,435,565.60/54,272.32
  6. Step 6: Final answer
    x = 25,251.10

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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.