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Finding the Fourth Proportional to 72,794.29, 100,456.07 and 40,963.22

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Solution

The fourth proportional to 72,794.29, 100,456.07 and 40,963.22 is: 56,529.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,794.29 : 100,456.07 = 40,963.22 : x
  2. Step 2: Convert to fraction form
    72,794.29/100,456.07 = 40,963.22/x
  3. Step 3: Cross multiply
    72,794.29x = 100,456.07 × 40,963.22
  4. Step 4: Simplify right side
    72,794.29x = 4,115,003,695.87
  5. Step 5: Solve for x
    x = 4,115,003,695.87/72,794.29
  6. Step 6: Final answer
    x = 56,529.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.