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Finding the Fourth Proportional to 72,727.39, 100,363.17 and 40,895.61

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Solution

The fourth proportional to 72,727.39, 100,363.17 and 40,895.61 is: 56,435.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,727.39 : 100,363.17 = 40,895.61 : x
  2. Step 2: Convert to fraction form
    72,727.39/100,363.17 = 40,895.61/x
  3. Step 3: Cross multiply
    72,727.39x = 100,363.17 × 40,895.61
  4. Step 4: Simplify right side
    72,727.39x = 4,104,413,058.68
  5. Step 5: Solve for x
    x = 4,104,413,058.68/72,727.39
  6. Step 6: Final answer
    x = 56,435.59

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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.