Home / 52,395.31-72,167.79-40,272.61

Finding the Fourth Proportional to 52,395.31, 72,167.79 and 40,272.61

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Solution

The fourth proportional to 52,395.31, 72,167.79 and 40,272.61 is: 55,470.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,395.31 : 72,167.79 = 40,272.61 : x
  2. Step 2: Convert to fraction form
    52,395.31/72,167.79 = 40,272.61/x
  3. Step 3: Cross multiply
    52,395.31x = 72,167.79 × 40,272.61
  4. Step 4: Simplify right side
    52,395.31x = 2,906,385,261.23
  5. Step 5: Solve for x
    x = 2,906,385,261.23/52,395.31
  6. Step 6: Final answer
    x = 55,470.33

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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.