Home / 52,721.68-72,753.75-31,512.64

Finding the Fourth Proportional to 52,721.68, 72,753.75 and 31,512.64

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Solution

The fourth proportional to 52,721.68, 72,753.75 and 31,512.64 is: 43,486.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,721.68 : 72,753.75 = 31,512.64 : x
  2. Step 2: Convert to fraction form
    52,721.68/72,753.75 = 31,512.64/x
  3. Step 3: Cross multiply
    52,721.68x = 72,753.75 × 31,512.64
  4. Step 4: Simplify right side
    52,721.68x = 2,292,662,732.40
  5. Step 5: Solve for x
    x = 2,292,662,732.40/52,721.68
  6. Step 6: Final answer
    x = 43,486.15

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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.