Home / 90,631.28-125,071.30-50,343.96

Finding the Fourth Proportional to 90,631.28, 125,071.30 and 50,343.96

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Solution

The fourth proportional to 90,631.28, 125,071.30 and 50,343.96 is: 69,474.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,631.28 : 125,071.30 = 50,343.96 : x
  2. Step 2: Convert to fraction form
    90,631.28/125,071.30 = 50,343.96/x
  3. Step 3: Cross multiply
    90,631.28x = 125,071.30 × 50,343.96
  4. Step 4: Simplify right side
    90,631.28x = 6,296,584,524.35
  5. Step 5: Solve for x
    x = 6,296,584,524.35/90,631.28
  6. Step 6: Final answer
    x = 69,474.74

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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.