Home / 51,200.70-76,835.21-17,920.76

Finding the Fourth Proportional to 51,200.70, 76,835.21 and 17,920.76

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Solution

The fourth proportional to 51,200.70, 76,835.21 and 17,920.76 is: 26,893.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,200.70 : 76,835.21 = 17,920.76 : x
  2. Step 2: Convert to fraction form
    51,200.70/76,835.21 = 17,920.76/x
  3. Step 3: Cross multiply
    51,200.70x = 76,835.21 × 17,920.76
  4. Step 4: Simplify right side
    51,200.70x = 1,376,945,316.38
  5. Step 5: Solve for x
    x = 1,376,945,316.38/51,200.70
  6. Step 6: Final answer
    x = 26,893.10

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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.