Home / 71,824.34-107,732.45-31,831.81

Finding the Fourth Proportional to 71,824.34, 107,732.45 and 31,831.81

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Solution

The fourth proportional to 71,824.34, 107,732.45 and 31,831.81 is: 47,745.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,824.34 : 107,732.45 = 31,831.81 : x
  2. Step 2: Convert to fraction form
    71,824.34/107,732.45 = 31,831.81/x
  3. Step 3: Cross multiply
    71,824.34x = 107,732.45 × 31,831.81
  4. Step 4: Simplify right side
    71,824.34x = 3,429,318,689.48
  5. Step 5: Solve for x
    x = 3,429,318,689.48/71,824.34
  6. Step 6: Final answer
    x = 47,745.91

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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.