Home / 53,911.40-74,398.44-31,251.65

Finding the Fourth Proportional to 53,911.40, 74,398.44 and 31,251.65

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Solution

The fourth proportional to 53,911.40, 74,398.44 and 31,251.65 is: 43,127.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,911.40 : 74,398.44 = 31,251.65 : x
  2. Step 2: Convert to fraction form
    53,911.40/74,398.44 = 31,251.65/x
  3. Step 3: Cross multiply
    53,911.40x = 74,398.44 × 31,251.65
  4. Step 4: Simplify right side
    53,911.40x = 2,325,073,635.43
  5. Step 5: Solve for x
    x = 2,325,073,635.43/53,911.40
  6. Step 6: Final answer
    x = 43,127.68

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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.