Home / 51,156.21-76,749.50-26,213.78

Finding the Fourth Proportional to 51,156.21, 76,749.50 and 26,213.78

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Solution

The fourth proportional to 51,156.21, 76,749.50 and 26,213.78 is: 39,328.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,156.21 : 76,749.50 = 26,213.78 : x
  2. Step 2: Convert to fraction form
    51,156.21/76,749.50 = 26,213.78/x
  3. Step 3: Cross multiply
    51,156.21x = 76,749.50 × 26,213.78
  4. Step 4: Simplify right side
    51,156.21x = 2,011,894,260.08
  5. Step 5: Solve for x
    x = 2,011,894,260.08/51,156.21
  6. Step 6: Final answer
    x = 39,328.45

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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.