Home / 52,618.12-78,958.31-19,361.54

Finding the Fourth Proportional to 52,618.12, 78,958.31 and 19,361.54

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Solution

The fourth proportional to 52,618.12, 78,958.31 and 19,361.54 is: 29,053.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,618.12 : 78,958.31 = 19,361.54 : x
  2. Step 2: Convert to fraction form
    52,618.12/78,958.31 = 19,361.54/x
  3. Step 3: Cross multiply
    52,618.12x = 78,958.31 × 19,361.54
  4. Step 4: Simplify right side
    52,618.12x = 1,528,754,167.31
  5. Step 5: Solve for x
    x = 1,528,754,167.31/52,618.12
  6. Step 6: Final answer
    x = 29,053.76

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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.