Home / 55,122.53-82,635.26-21,865.95

Finding the Fourth Proportional to 55,122.53, 82,635.26 and 21,865.95

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Solution

The fourth proportional to 55,122.53, 82,635.26 and 21,865.95 is: 32,779.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,122.53 : 82,635.26 = 21,865.95 : x
  2. Step 2: Convert to fraction form
    55,122.53/82,635.26 = 21,865.95/x
  3. Step 3: Cross multiply
    55,122.53x = 82,635.26 × 21,865.95
  4. Step 4: Simplify right side
    55,122.53x = 1,806,898,354.07
  5. Step 5: Solve for x
    x = 1,806,898,354.07/55,122.53
  6. Step 6: Final answer
    x = 32,779.67

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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.