Home / 51,747.21-77,675.10-45,861.75

Finding the Fourth Proportional to 51,747.21, 77,675.10 and 45,861.75

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Solution

The fourth proportional to 51,747.21, 77,675.10 and 45,861.75 is: 68,840.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,747.21 : 77,675.10 = 45,861.75 : x
  2. Step 2: Convert to fraction form
    51,747.21/77,675.10 = 45,861.75/x
  3. Step 3: Cross multiply
    51,747.21x = 77,675.10 × 45,861.75
  4. Step 4: Simplify right side
    51,747.21x = 3,562,316,017.43
  5. Step 5: Solve for x
    x = 3,562,316,017.43/51,747.21
  6. Step 6: Final answer
    x = 68,840.74

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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.