Home / 51,902.76-77,856.08-18,162.20

Finding the Fourth Proportional to 51,902.76, 77,856.08 and 18,162.20

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Solution

The fourth proportional to 51,902.76, 77,856.08 and 18,162.20 is: 27,243.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,902.76 : 77,856.08 = 18,162.20 : x
  2. Step 2: Convert to fraction form
    51,902.76/77,856.08 = 18,162.20/x
  3. Step 3: Cross multiply
    51,902.76x = 77,856.08 × 18,162.20
  4. Step 4: Simplify right side
    51,902.76x = 1,414,037,696.18
  5. Step 5: Solve for x
    x = 1,414,037,696.18/51,902.76
  6. Step 6: Final answer
    x = 27,243.98

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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.