Home / 72,818.12-100,163.58-62,189.84

Finding the Fourth Proportional to 72,818.12, 100,163.58 and 62,189.84

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Solution

The fourth proportional to 72,818.12, 100,163.58 and 62,189.84 is: 85,544.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,818.12 : 100,163.58 = 62,189.84 : x
  2. Step 2: Convert to fraction form
    72,818.12/100,163.58 = 62,189.84/x
  3. Step 3: Cross multiply
    72,818.12x = 100,163.58 × 62,189.84
  4. Step 4: Simplify right side
    72,818.12x = 6,229,157,014.03
  5. Step 5: Solve for x
    x = 6,229,157,014.03/72,818.12
  6. Step 6: Final answer
    x = 85,544.05

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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.