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Finding the Fourth Proportional to 72,727.64, 100,363.52 and 40,895.86

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Solution

The fourth proportional to 72,727.64, 100,363.52 and 40,895.86 is: 56,435.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,727.64 : 100,363.52 = 40,895.86 : x
  2. Step 2: Convert to fraction form
    72,727.64/100,363.52 = 40,895.86/x
  3. Step 3: Cross multiply
    72,727.64x = 100,363.52 × 40,895.86
  4. Step 4: Simplify right side
    72,727.64x = 4,104,451,756.73
  5. Step 5: Solve for x
    x = 4,104,451,756.73/72,727.64
  6. Step 6: Final answer
    x = 56,435.93

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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.