Home / 51,813.54-77,720.34-20,670.66

Finding the Fourth Proportional to 51,813.54, 77,720.34 and 20,670.66

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Solution

The fourth proportional to 51,813.54, 77,720.34 and 20,670.66 is: 31,006.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,813.54 : 77,720.34 = 20,670.66 : x
  2. Step 2: Convert to fraction form
    51,813.54/77,720.34 = 20,670.66/x
  3. Step 3: Cross multiply
    51,813.54x = 77,720.34 × 20,670.66
  4. Step 4: Simplify right side
    51,813.54x = 1,606,530,723.22
  5. Step 5: Solve for x
    x = 1,606,530,723.22/51,813.54
  6. Step 6: Final answer
    x = 31,006.00

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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.