Home / 51,256.70-76,861.98-21,659.30

Finding the Fourth Proportional to 51,256.70, 76,861.98 and 21,659.30

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Solution

The fourth proportional to 51,256.70, 76,861.98 and 21,659.30 is: 32,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,256.70 : 76,861.98 = 21,659.30 : x
  2. Step 2: Convert to fraction form
    51,256.70/76,861.98 = 21,659.30/x
  3. Step 3: Cross multiply
    51,256.70x = 76,861.98 × 21,659.30
  4. Step 4: Simplify right side
    51,256.70x = 1,664,776,683.41
  5. Step 5: Solve for x
    x = 1,664,776,683.41/51,256.70
  6. Step 6: Final answer
    x = 32,479.20

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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.