Home / 53,645.28-80,406-39,393.60

Finding the Fourth Proportional to 53,645.28, 80,406 and 39,393.60

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Solution

The fourth proportional to 53,645.28, 80,406 and 39,393.60 is: 59,044.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,645.28 : 80,406 = 39,393.60 : x
  2. Step 2: Convert to fraction form
    53,645.28/80,406 = 39,393.60/x
  3. Step 3: Cross multiply
    53,645.28x = 80,406 × 39,393.60
  4. Step 4: Simplify right side
    53,645.28x = 3,167,481,801.60
  5. Step 5: Solve for x
    x = 3,167,481,801.60/53,645.28
  6. Step 6: Final answer
    x = 59,044.93

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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.