Home / 51,439.92-77,188.68-28,091.76

Finding the Fourth Proportional to 51,439.92, 77,188.68 and 28,091.76

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Solution

The fourth proportional to 51,439.92, 77,188.68 and 28,091.76 is: 42,153.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,439.92 : 77,188.68 = 28,091.76 : x
  2. Step 2: Convert to fraction form
    51,439.92/77,188.68 = 28,091.76/x
  3. Step 3: Cross multiply
    51,439.92x = 77,188.68 × 28,091.76
  4. Step 4: Simplify right side
    51,439.92x = 2,168,365,873.28
  5. Step 5: Solve for x
    x = 2,168,365,873.28/51,439.92
  6. Step 6: Final answer
    x = 42,153.37

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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.