Home / 51,768.88-77,658.16-18,492.40

Finding the Fourth Proportional to 51,768.88, 77,658.16 and 18,492.40

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Solution

The fourth proportional to 51,768.88, 77,658.16 and 18,492.40 is: 27,740.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,768.88 : 77,658.16 = 18,492.40 : x
  2. Step 2: Convert to fraction form
    51,768.88/77,658.16 = 18,492.40/x
  3. Step 3: Cross multiply
    51,768.88x = 77,658.16 × 18,492.40
  4. Step 4: Simplify right side
    51,768.88x = 1,436,085,757.98
  5. Step 5: Solve for x
    x = 1,436,085,757.98/51,768.88
  6. Step 6: Final answer
    x = 27,740.33

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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.