Home / 53,892.81-74,370.99-31,231.21

Finding the Fourth Proportional to 53,892.81, 74,370.99 and 31,231.21

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Solution

The fourth proportional to 53,892.81, 74,370.99 and 31,231.21 is: 43,098.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,892.81 : 74,370.99 = 31,231.21 : x
  2. Step 2: Convert to fraction form
    53,892.81/74,370.99 = 31,231.21/x
  3. Step 3: Cross multiply
    53,892.81x = 74,370.99 × 31,231.21
  4. Step 4: Simplify right side
    53,892.81x = 2,322,696,179.76
  5. Step 5: Solve for x
    x = 2,322,696,179.76/53,892.81
  6. Step 6: Final answer
    x = 43,098.45

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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.