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Finding the Fourth Proportional to 72,650.86, 100,302.92 and 57,604.30

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Solution

The fourth proportional to 72,650.86, 100,302.92 and 57,604.30 is: 79,529.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,650.86 : 100,302.92 = 57,604.30 : x
  2. Step 2: Convert to fraction form
    72,650.86/100,302.92 = 57,604.30/x
  3. Step 3: Cross multiply
    72,650.86x = 100,302.92 × 57,604.30
  4. Step 4: Simplify right side
    72,650.86x = 5,777,879,494.56
  5. Step 5: Solve for x
    x = 5,777,879,494.56/72,650.86
  6. Step 6: Final answer
    x = 79,529.40

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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.