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Finding the Fourth Proportional to 101,493.60, 152,254.97 and 31,378.38

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Solution

The fourth proportional to 101,493.60, 152,254.97 and 31,378.38 is: 47,072.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,493.60 : 152,254.97 = 31,378.38 : x
  2. Step 2: Convert to fraction form
    101,493.60/152,254.97 = 31,378.38/x
  3. Step 3: Cross multiply
    101,493.60x = 152,254.97 × 31,378.38
  4. Step 4: Simplify right side
    101,493.60x = 4,777,514,305.55
  5. Step 5: Solve for x
    x = 4,777,514,305.55/101,493.60
  6. Step 6: Final answer
    x = 47,072.07

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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.