Home / 45,120.89-67,658.57-26,406.55

Finding the Fourth Proportional to 45,120.89, 67,658.57 and 26,406.55

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Solution

The fourth proportional to 45,120.89, 67,658.57 and 26,406.55 is: 39,596.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,120.89 : 67,658.57 = 26,406.55 : x
  2. Step 2: Convert to fraction form
    45,120.89/67,658.57 = 26,406.55/x
  3. Step 3: Cross multiply
    45,120.89x = 67,658.57 × 26,406.55
  4. Step 4: Simplify right side
    45,120.89x = 1,786,629,463.20
  5. Step 5: Solve for x
    x = 1,786,629,463.20/45,120.89
  6. Step 6: Final answer
    x = 39,596.50

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1.5x scale

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.