Home / 51,286.40-76,929.60-26,403.20

Finding the Fourth Proportional to 51,286.40, 76,929.60 and 26,403.20

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Solution

The fourth proportional to 51,286.40, 76,929.60 and 26,403.20 is: 39,604.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,286.40 : 76,929.60 = 26,403.20 : x
  2. Step 2: Convert to fraction form
    51,286.40/76,929.60 = 26,403.20/x
  3. Step 3: Cross multiply
    51,286.40x = 76,929.60 × 26,403.20
  4. Step 4: Simplify right side
    51,286.40x = 2,031,187,614.72
  5. Step 5: Solve for x
    x = 2,031,187,614.72/51,286.40
  6. Step 6: Final answer
    x = 39,604.80

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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.