Home / 71,831.14-99,125.85-40,002.82

Finding the Fourth Proportional to 71,831.14, 99,125.85 and 40,002.82

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Solution

The fourth proportional to 71,831.14, 99,125.85 and 40,002.82 is: 55,203.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,831.14 : 99,125.85 = 40,002.82 : x
  2. Step 2: Convert to fraction form
    71,831.14/99,125.85 = 40,002.82/x
  3. Step 3: Cross multiply
    71,831.14x = 99,125.85 × 40,002.82
  4. Step 4: Simplify right side
    71,831.14x = 3,965,313,534.90
  5. Step 5: Solve for x
    x = 3,965,313,534.90/71,831.14
  6. Step 6: Final answer
    x = 55,203.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.