Home / 51,537.30-77,269.05-19,920.30

Finding the Fourth Proportional to 51,537.30, 77,269.05 and 19,920.30

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Solution

The fourth proportional to 51,537.30, 77,269.05 and 19,920.30 is: 29,866.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,537.30 : 77,269.05 = 19,920.30 : x
  2. Step 2: Convert to fraction form
    51,537.30/77,269.05 = 19,920.30/x
  3. Step 3: Cross multiply
    51,537.30x = 77,269.05 × 19,920.30
  4. Step 4: Simplify right side
    51,537.30x = 1,539,222,656.72
  5. Step 5: Solve for x
    x = 1,539,222,656.72/51,537.30
  6. Step 6: Final answer
    x = 29,866.19

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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.