Home / 72,027.05-99,396.90-40,195.86

Finding the Fourth Proportional to 72,027.05, 99,396.90 and 40,195.86

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Solution

The fourth proportional to 72,027.05, 99,396.90 and 40,195.86 is: 55,470.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,027.05 : 99,396.90 = 40,195.86 : x
  2. Step 2: Convert to fraction form
    72,027.05/99,396.90 = 40,195.86/x
  3. Step 3: Cross multiply
    72,027.05x = 99,396.90 × 40,195.86
  4. Step 4: Simplify right side
    72,027.05x = 3,995,343,876.83
  5. Step 5: Solve for x
    x = 3,995,343,876.83/72,027.05
  6. Step 6: Final answer
    x = 55,470.05

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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.