Home / 53,890.47-74,369.64-31,231.14

Finding the Fourth Proportional to 53,890.47, 74,369.64 and 31,231.14

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Solution

The fourth proportional to 53,890.47, 74,369.64 and 31,231.14 is: 43,099.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,890.47 : 74,369.64 = 31,231.14 : x
  2. Step 2: Convert to fraction form
    53,890.47/74,369.64 = 31,231.14/x
  3. Step 3: Cross multiply
    53,890.47x = 74,369.64 × 31,231.14
  4. Step 4: Simplify right side
    53,890.47x = 2,322,648,638.59
  5. Step 5: Solve for x
    x = 2,322,648,638.59/53,890.47
  6. Step 6: Final answer
    x = 43,099.43

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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.