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Finding the Fourth Proportional to 72,595.95, 100,183.02 and 40,767.81

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Solution

The fourth proportional to 72,595.95, 100,183.02 and 40,767.81 is: 56,259.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,595.95 : 100,183.02 = 40,767.81 : x
  2. Step 2: Convert to fraction form
    72,595.95/100,183.02 = 40,767.81/x
  3. Step 3: Cross multiply
    72,595.95x = 100,183.02 × 40,767.81
  4. Step 4: Simplify right side
    72,595.95x = 4,084,242,324.59
  5. Step 5: Solve for x
    x = 4,084,242,324.59/72,595.95
  6. Step 6: Final answer
    x = 56,259.92

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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.