Home / 53,940.36-74,421.18-31,274.81

Finding the Fourth Proportional to 53,940.36, 74,421.18 and 31,274.81

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Solution

The fourth proportional to 53,940.36, 74,421.18 and 31,274.81 is: 43,149.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,940.36 : 74,421.18 = 31,274.81 : x
  2. Step 2: Convert to fraction form
    53,940.36/74,421.18 = 31,274.81/x
  3. Step 3: Cross multiply
    53,940.36x = 74,421.18 × 31,274.81
  4. Step 4: Simplify right side
    53,940.36x = 2,327,507,892.37
  5. Step 5: Solve for x
    x = 2,327,507,892.37/53,940.36
  6. Step 6: Final answer
    x = 43,149.65

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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.