Home / 115,033.84-172,512.18-55,831.72

Finding the Fourth Proportional to 115,033.84, 172,512.18 and 55,831.72

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Solution

The fourth proportional to 115,033.84, 172,512.18 and 55,831.72 is: 83,728.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,033.84 : 172,512.18 = 55,831.72 : x
  2. Step 2: Convert to fraction form
    115,033.84/172,512.18 = 55,831.72/x
  3. Step 3: Cross multiply
    115,033.84x = 172,512.18 × 55,831.72
  4. Step 4: Simplify right side
    115,033.84x = 9,631,651,730.35
  5. Step 5: Solve for x
    x = 9,631,651,730.35/115,033.84
  6. Step 6: Final answer
    x = 83,728.86

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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.