Home / 53,832.80-74,291.70-31,172.78

Finding the Fourth Proportional to 53,832.80, 74,291.70 and 31,172.78

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Solution

The fourth proportional to 53,832.80, 74,291.70 and 31,172.78 is: 43,019.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,832.80 : 74,291.70 = 31,172.78 : x
  2. Step 2: Convert to fraction form
    53,832.80/74,291.70 = 31,172.78/x
  3. Step 3: Cross multiply
    53,832.80x = 74,291.70 × 31,172.78
  4. Step 4: Simplify right side
    53,832.80x = 2,315,878,448.47
  5. Step 5: Solve for x
    x = 2,315,878,448.47/53,832.80
  6. Step 6: Final answer
    x = 43,019.84

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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.