Home / 67,145.40-100,596.60-53,197.20

Finding the Fourth Proportional to 67,145.40, 100,596.60 and 53,197.20

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Solution

The fourth proportional to 67,145.40, 100,596.60 and 53,197.20 is: 79,699.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,145.40 : 100,596.60 = 53,197.20 : x
  2. Step 2: Convert to fraction form
    67,145.40/100,596.60 = 53,197.20/x
  3. Step 3: Cross multiply
    67,145.40x = 100,596.60 × 53,197.20
  4. Step 4: Simplify right side
    67,145.40x = 5,351,457,449.52
  5. Step 5: Solve for x
    x = 5,351,457,449.52/67,145.40
  6. Step 6: Final answer
    x = 79,699.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.