Home / 51,245.06-76,883.99-42,905.30

Finding the Fourth Proportional to 51,245.06, 76,883.99 and 42,905.30

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Solution

The fourth proportional to 51,245.06, 76,883.99 and 42,905.30 is: 64,371.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,245.06 : 76,883.99 = 42,905.30 : x
  2. Step 2: Convert to fraction form
    51,245.06/76,883.99 = 42,905.30/x
  3. Step 3: Cross multiply
    51,245.06x = 76,883.99 × 42,905.30
  4. Step 4: Simplify right side
    51,245.06x = 3,298,730,057.20
  5. Step 5: Solve for x
    x = 3,298,730,057.20/51,245.06
  6. Step 6: Final answer
    x = 64,371.68

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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.