Home / 81,752.04-122,636.04-31,836.24

Finding the Fourth Proportional to 81,752.04, 122,636.04 and 31,836.24

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Solution

The fourth proportional to 81,752.04, 122,636.04 and 31,836.24 is: 47,757.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,752.04 : 122,636.04 = 31,836.24 : x
  2. Step 2: Convert to fraction form
    81,752.04/122,636.04 = 31,836.24/x
  3. Step 3: Cross multiply
    81,752.04x = 122,636.04 × 31,836.24
  4. Step 4: Simplify right side
    81,752.04x = 3,904,270,402.09
  5. Step 5: Solve for x
    x = 3,904,270,402.09/81,752.04
  6. Step 6: Final answer
    x = 47,757.47

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1.5x scale

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.