Home / 88,376.50-121,939.37-50,126.91

Finding the Fourth Proportional to 88,376.50, 121,939.37 and 50,126.91

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Solution

The fourth proportional to 88,376.50, 121,939.37 and 50,126.91 is: 69,163.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,376.50 : 121,939.37 = 50,126.91 : x
  2. Step 2: Convert to fraction form
    88,376.50/121,939.37 = 50,126.91/x
  3. Step 3: Cross multiply
    88,376.50x = 121,939.37 × 50,126.91
  4. Step 4: Simplify right side
    88,376.50x = 6,112,442,965.12
  5. Step 5: Solve for x
    x = 6,112,442,965.12/88,376.50
  6. Step 6: Final answer
    x = 69,163.67

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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.