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Finding the Fourth Proportional to 45,309.15, 67,963.73 and 38,748.15

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Solution

The fourth proportional to 45,309.15, 67,963.73 and 38,748.15 is: 58,122.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,309.15 : 67,963.73 = 38,748.15 : x
  2. Step 2: Convert to fraction form
    45,309.15/67,963.73 = 38,748.15/x
  3. Step 3: Cross multiply
    45,309.15x = 67,963.73 × 38,748.15
  4. Step 4: Simplify right side
    45,309.15x = 2,633,468,610.86
  5. Step 5: Solve for x
    x = 2,633,468,610.86/45,309.15
  6. Step 6: Final answer
    x = 58,122.23

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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.