Home / 51,132.74-76,697.90-13,692.78

Finding the Fourth Proportional to 51,132.74, 76,697.90 and 13,692.78

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Solution

The fourth proportional to 51,132.74, 76,697.90 and 13,692.78 is: 20,538.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,132.74 : 76,697.90 = 13,692.78 : x
  2. Step 2: Convert to fraction form
    51,132.74/76,697.90 = 13,692.78/x
  3. Step 3: Cross multiply
    51,132.74x = 76,697.90 × 13,692.78
  4. Step 4: Simplify right side
    51,132.74x = 1,050,207,796.87
  5. Step 5: Solve for x
    x = 1,050,207,796.87/51,132.74
  6. Step 6: Final answer
    x = 20,538.85

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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.