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Finding the Fourth Proportional to 73,161.61, 100,961.56 and 40,896.07

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Solution

The fourth proportional to 73,161.61, 100,961.56 and 40,896.07 is: 56,435.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,161.61 : 100,961.56 = 40,896.07 : x
  2. Step 2: Convert to fraction form
    73,161.61/100,961.56 = 40,896.07/x
  3. Step 3: Cross multiply
    73,161.61x = 100,961.56 × 40,896.07
  4. Step 4: Simplify right side
    73,161.61x = 4,128,931,025.07
  5. Step 5: Solve for x
    x = 4,128,931,025.07/73,161.61
  6. Step 6: Final answer
    x = 56,435.76

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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.