Home / 51,905.76-77,860.58-18,165.20

Finding the Fourth Proportional to 51,905.76, 77,860.58 and 18,165.20

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Solution

The fourth proportional to 51,905.76, 77,860.58 and 18,165.20 is: 27,248.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,905.76 : 77,860.58 = 18,165.20 : x
  2. Step 2: Convert to fraction form
    51,905.76/77,860.58 = 18,165.20/x
  3. Step 3: Cross multiply
    51,905.76x = 77,860.58 × 18,165.20
  4. Step 4: Simplify right side
    51,905.76x = 1,414,353,007.82
  5. Step 5: Solve for x
    x = 1,414,353,007.82/51,905.76
  6. Step 6: Final answer
    x = 27,248.48

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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.