Home / 71,973.48-99,323.88-40,144.44

Finding the Fourth Proportional to 71,973.48, 99,323.88 and 40,144.44

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Solution

The fourth proportional to 71,973.48, 99,323.88 and 40,144.44 is: 55,399.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,973.48 : 99,323.88 = 40,144.44 : x
  2. Step 2: Convert to fraction form
    71,973.48/99,323.88 = 40,144.44/x
  3. Step 3: Cross multiply
    71,973.48x = 99,323.88 × 40,144.44
  4. Step 4: Simplify right side
    71,973.48x = 3,987,301,541.23
  5. Step 5: Solve for x
    x = 3,987,301,541.23/71,973.48
  6. Step 6: Final answer
    x = 55,399.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.