Home / 72,985.21-100,723.10-41,153.43

Finding the Fourth Proportional to 72,985.21, 100,723.10 and 41,153.43

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Solution

The fourth proportional to 72,985.21, 100,723.10 and 41,153.43 is: 56,793.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,985.21 : 100,723.10 = 41,153.43 : x
  2. Step 2: Convert to fraction form
    72,985.21/100,723.10 = 41,153.43/x
  3. Step 3: Cross multiply
    72,985.21x = 100,723.10 × 41,153.43
  4. Step 4: Simplify right side
    72,985.21x = 4,145,101,045.23
  5. Step 5: Solve for x
    x = 4,145,101,045.23/72,985.21
  6. Step 6: Final answer
    x = 56,793.71

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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.