Home / 73,869.30-110,743.20-31,781.70

Finding the Fourth Proportional to 73,869.30, 110,743.20 and 31,781.70

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Solution

The fourth proportional to 73,869.30, 110,743.20 and 31,781.70 is: 47,646.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,869.30 : 110,743.20 = 31,781.70 : x
  2. Step 2: Convert to fraction form
    73,869.30/110,743.20 = 31,781.70/x
  3. Step 3: Cross multiply
    73,869.30x = 110,743.20 × 31,781.70
  4. Step 4: Simplify right side
    73,869.30x = 3,519,607,159.44
  5. Step 5: Solve for x
    x = 3,519,607,159.44/73,869.30
  6. Step 6: Final answer
    x = 47,646.41

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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.