Home / 49,531.09-74,315.13-19,957.31

Finding the Fourth Proportional to 49,531.09, 74,315.13 and 19,957.31

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Solution

The fourth proportional to 49,531.09, 74,315.13 and 19,957.31 is: 29,943.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,531.09 : 74,315.13 = 19,957.31 : x
  2. Step 2: Convert to fraction form
    49,531.09/74,315.13 = 19,957.31/x
  3. Step 3: Cross multiply
    49,531.09x = 74,315.13 × 19,957.31
  4. Step 4: Simplify right side
    49,531.09x = 1,483,129,987.31
  5. Step 5: Solve for x
    x = 1,483,129,987.31/49,531.09
  6. Step 6: Final answer
    x = 29,943.42

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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.