Home / 101,007.41-139,391.19-55,687.05

Finding the Fourth Proportional to 101,007.41, 139,391.19 and 55,687.05

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Solution

The fourth proportional to 101,007.41, 139,391.19 and 55,687.05 is: 76,848.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,007.41 : 139,391.19 = 55,687.05 : x
  2. Step 2: Convert to fraction form
    101,007.41/139,391.19 = 55,687.05/x
  3. Step 3: Cross multiply
    101,007.41x = 139,391.19 × 55,687.05
  4. Step 4: Simplify right side
    101,007.41x = 7,762,284,654.79
  5. Step 5: Solve for x
    x = 7,762,284,654.79/101,007.41
  6. Step 6: Final answer
    x = 76,848.67

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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.