Home / 81,753.04-122,637.54-31,837.24

Finding the Fourth Proportional to 81,753.04, 122,637.54 and 31,837.24

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Solution

The fourth proportional to 81,753.04, 122,637.54 and 31,837.24 is: 47,758.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,753.04 : 122,637.54 = 31,837.24 : x
  2. Step 2: Convert to fraction form
    81,753.04/122,637.54 = 31,837.24/x
  3. Step 3: Cross multiply
    81,753.04x = 122,637.54 × 31,837.24
  4. Step 4: Simplify right side
    81,753.04x = 3,904,440,793.99
  5. Step 5: Solve for x
    x = 3,904,440,793.99/81,753.04
  6. Step 6: Final answer
    x = 47,758.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.