Home / 72,594.15-100,181.10-40,330.85

Finding the Fourth Proportional to 72,594.15, 100,181.10 and 40,330.85

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Solution

The fourth proportional to 72,594.15, 100,181.10 and 40,330.85 is: 55,657.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,594.15 : 100,181.10 = 40,330.85 : x
  2. Step 2: Convert to fraction form
    72,594.15/100,181.10 = 40,330.85/x
  3. Step 3: Cross multiply
    72,594.15x = 100,181.10 × 40,330.85
  4. Step 4: Simplify right side
    72,594.15x = 4,040,388,416.03
  5. Step 5: Solve for x
    x = 4,040,388,416.03/72,594.15
  6. Step 6: Final answer
    x = 55,657.22

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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.