Home / 53,781.90-74,142.09-35,870.37

Finding the Fourth Proportional to 53,781.90, 74,142.09 and 35,870.37

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Solution

The fourth proportional to 53,781.90, 74,142.09 and 35,870.37 is: 49,449.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,781.90 : 74,142.09 = 35,870.37 : x
  2. Step 2: Convert to fraction form
    53,781.90/74,142.09 = 35,870.37/x
  3. Step 3: Cross multiply
    53,781.90x = 74,142.09 × 35,870.37
  4. Step 4: Simplify right side
    53,781.90x = 2,659,504,200.87
  5. Step 5: Solve for x
    x = 2,659,504,200.87/53,781.90
  6. Step 6: Final answer
    x = 49,449.80

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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.