Home / 72,765.12-100,429.62-45,553.86

Finding the Fourth Proportional to 72,765.12, 100,429.62 and 45,553.86

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Solution

The fourth proportional to 72,765.12, 100,429.62 and 45,553.86 is: 62,872.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,765.12 : 100,429.62 = 45,553.86 : x
  2. Step 2: Convert to fraction form
    72,765.12/100,429.62 = 45,553.86/x
  3. Step 3: Cross multiply
    72,765.12x = 100,429.62 × 45,553.86
  4. Step 4: Simplify right side
    72,765.12x = 4,574,956,849.33
  5. Step 5: Solve for x
    x = 4,574,956,849.33/72,765.12
  6. Step 6: Final answer
    x = 62,872.94

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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.